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Risk/Return: rr_RiskReturnAbstract  
Central Index Key dei_EntityCentralIndexKey 0000049905
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Hartford Schroders Emerging Markets Multi-Sector Bond Fund Summary Section
Objective [Heading] rr_ObjectiveHeading
INVESTMENT OBJECTIVE.
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks to provide a return of long-term capital growth and income.
Expense [Heading] rr_ExpenseHeading
YOUR EXPENSES.
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
The table below describes the fees and expenses that you may pay if you buy and hold shares 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 Hartford Funds. More information about these and other discounts is available from your financial professional and in the "Sales Charge Reductions and Waivers" section beginning on page 94 of the Fund's statutory prospectus and the "Purchase and Redemption of Shares" section beginning on page 77 of the Fund's statement of additional information.
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)
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 examples, affect the Fund's performance. During the most recent fiscal year, the Predecessor Fund's portfolio turnover rate was 209% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 209.00%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock
For investments over $1 million, a 1.00% maximum deferred sales charge may apply.
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 Hartford Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example [Heading] rr_ExpenseExampleHeading
Example.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

The examples below are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The examples assume that:

•  Your investment has a 5% return each year

•  The Fund's operating expenses remain the same (except that the examples reflect the expense limitation arrangements for only the first year)

•  You reinvest all dividends and distributions

•  You pay any deferred sales charge due for the applicable period.

Your actual costs may be higher or lower. Based on these assumptions, for every $10,000 invested, you would pay the following expenses if you sell all of your shares at the end of each time period indicated:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption
You would pay the following expenses if you did not redeem your shares:
Strategy [Heading] rr_StrategyHeading
PRINCIPAL INVESTMENT STRATEGY.
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its assets in bonds of issuers located in emerging market countries. Bonds in which the Fund may invest may be obligations of governments or government agencies or instrumentalities, supra-national issuers, or corporate issuers. Such bonds may pay fixed, variable, or floating interest rates and may include government securities, debt securities of corporations, asset-backed securities, mortgage-backed securities, zero-coupon securities, convertible securities, inflation-indexed bonds, structured notes, including credit-linked notes and hybrid or "indexed" securities, event-linked bonds, and loan participations, delayed funding loans and revolving credit facilities, and short-term investments. The value of the Fund's investments in derivatives or other synthetic instruments described below that provide exposure comparable, in the judgment of the sub-adviser, Schroder Investment Management North America Inc. ("SIMNA" or the "Sub-Adviser"), to investments in bonds may be counted toward satisfaction of the 80% policy described above.

The Fund's assets will be allocated actively among sectors within the fixed-income market based on the Sub-Adviser's assessment of their relative values and the risks and rewards they present. In selecting investments for the Fund, the Sub-Adviser seeks to identify bonds that offer what it considers the best possible risk/reward profile. Securities may be denominated in emerging market currencies, in the U.S. dollar, or in other developed-market currencies, depending on the Sub-Adviser's view of the relative values and risks of investments in the various currencies. The Fund may invest in securities rated in any rating category and in unrated securities, and it may invest any portion of its assets in securities rated below investment grade or in unrated securities considered by the Sub-Adviser to be of comparable quality (so-called "junk bonds"). The Fund may invest in debt securities of any maturity or duration. The Sub-Adviser's investment process may result in frequent trading of the Fund's portfolio securities. The Fund may invest up to 20% of its assets in asset-backed and mortgage-backed securities. The Fund is a non-diversified mutual fund.
Risk [Heading] rr_RiskHeading
PRINCIPAL RISKS.
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

The principal risks of investing in the Fund are described below. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. 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. As with any fund, there is no guarantee that the Fund will achieve its investment objective. For more information regarding risks and investment matters, please see "Additional Information Regarding Investment Strategies and Risks" and "More Information About Risks" in the Fund's statutory prospectus.

Market Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities may decline in value due to the activities and financial prospects of individual companies or to general market and economic movements and trends, including adverse changes to credit markets.

Foreign Investments Risk – Investments in foreign securities may be riskier than investments in U.S. securities. Differences between the U.S. and foreign regulatory regimes and securities markets, including the less stringent investor protection and disclosure standards of some foreign markets, as well as political and economic developments in foreign countries and regions, may affect the value of the Fund's investments in foreign securities. Changes in currency exchange rates may also adversely affect the Fund's foreign investments.

Emerging Markets Risk – The risks related to investing in foreign securities are generally greater with respect to investments in companies that conduct their principal business activities in emerging markets or whose securities are traded principally on exchanges in emerging markets. The risks of investing in emerging markets include risks of illiquidity, increased price volatility, smaller market capitalizations, less government regulation, less extensive and less frequent accounting, financial and other reporting requirements, significant delays in settlement of trades, risk of loss resulting from problems in share registration and custody and substantial economic and political disruptions. Frontier markets are those emerging markets that are considered to be among the smallest, least mature and least liquid, and as a result, the risks of investing in emerging markets are magnified in frontier markets.

Interest Rate Risk – The risk that your investment may go down in value when interest rates rise, because when interest rates rise, the prices of bonds and fixed rate loans fall. A wide variety of factors can cause interest rates to rise, including central bank monetary policies and inflation rates. Generally, the longer the maturity of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund's income. These risks are greater during periods of rising inflation. Volatility in interest rates and in fixed income markets may increase the risk that the Fund's investment in fixed income securities will go down in value. Risks associated with rising interest rates are currently heightened because interest rates in the U.S. are at, or near, historic lows.

Credit Risk – Credit risk is the risk that the issuer of a security or other instrument will not be able to make principal and interest payments when due. Changes in an issuer's financial strength, credit rating or the market's perception of an issuer's creditworthiness may also affect the value of the Fund's investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.

Currency Risk – The risk that the value of the Fund's investments in foreign securities or currencies will be affected by the value of the applicable currency relative to the U.S. dollar. When the Fund sells a foreign currency or foreign currency denominated security, its value may be worth less in U.S. dollars even if the investment increases in value in its local market. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the revenue earned by issuers of these securities may also be affected by changes in the issuer's local currency.

Non-Diversification Risk – The Fund is non-diversified, which means it is permitted to invest a greater portion of its assets in a smaller number of issuers than a "diversified" fund. For this reason the Fund may be more exposed to the risks associated with and developments affecting an individual issuer than a fund that invests more widely. The Fund may also be subject to greater market fluctuation and price volatility than a more broadly diversified fund.

High Yield Investments Risk – High yield investments rated below investment grade (also referred to as "junk bonds") are considered to be speculative and are subject to heightened credit risk, which may make the Fund more sensitive to adverse developments in the U.S. and abroad. Lower rated debt securities generally involve greater risk of default or price changes due to changes in the issuer's creditworthiness than higher rated debt securities. The market prices of these securities may fluctuate more than higher quality securities and may decline significantly in periods of general economic difficulty. There may be little trading in the secondary market for particular debt securities, which may make them more difficult to value or sell.

Convertible Securities Risk – Debt securities that are convertible into preferred or common stocks are subject to the risks of both debt and equity securities.

Liquidity Risk – The risk that the market for a particular investment or type of investment is or becomes relatively illiquid, making it difficult for the Fund to sell that investment at an advantageous time or price. Illiquidity may be due to events relating to the issuer of the securities, market events, rising interest rates, economic conditions or investor perceptions. Illiquid securities may be difficult to value and their value may be lower than the market price of comparable liquid securities, which would negatively affect the Fund's performance.

Derivatives Risk – Derivatives are instruments whose value depends on, or is derived from, the value of an underlying asset, reference rate or index. Derivatives may be riskier than other types of investments because they may be more sensitive to changes in economic or market conditions than other types of investments and could result in losses that significantly exceed the Fund's original investment. Successful use of derivative instruments by the Fund depends on the sub-adviser's judgment with respect to a number of factors and the Fund's performance could be worse and/or more volatile than if it had not used these instruments. In addition, the fluctuations in the value of derivatives may not correlate perfectly with the value of any portfolio assets being hedged, the performance of the asset class to which the sub-adviser seeks exposure, or the overall securities markets.

Swaps Risk – A swap is a two-party contract that generally obligates the parties to exchange payments based on a specified reference security, basket of securities, security index or index component. Swaps can involve greater risks than direct investment in securities because swaps may be leveraged and are subject to counterparty risk (e.g., the risk of a counterparty defaulting on the obligation or bankruptcy), credit risk and pricing risk (i.e., swaps may be difficult to value). Certain swaps may also be considered illiquid. It may not be possible for the Fund to liquidate a swap position at an advantageous time or price, which may result in significant losses.

Futures and Options Risks – Futures and options may be more volatile than direct investments in the securities underlying the futures and options, may not correlate perfectly to the underlying securities, may involve additional costs, and may be illiquid. Futures and options also may involve the use of leverage as the Fund may make a small initial investment relative to the risk assumed, which could result in losses greater than if futures or options had not been used. Futures and options are also subject to the risk that the other party to the transaction may default on its obligation.

Counterparty Risk – The risk that the counterparty in a transaction by the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise to honor its obligations.

Active Trading Risk – Active trading could increase the Fund's transaction costs and may increase your tax liability as compared to a fund with less active trading policies. These effects may adversely affect Fund performance.

Volatility Risk – Share price, yield and total return may fluctuate more than with funds that use a different investment strategy.

Leverage Risk – Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. Leverage may also cause the Fund to be more volatile than if it had not been leveraged. The use of leverage may cause the Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so.

Investment Strategy Risk – The risk that, if the Sub-Adviser's investment strategy does not perform as expected, the Fund could underperform its peers or lose money. There is no guarantee that the Fund's investment objective will be achieved.

Large Shareholder Transaction Risk – The Fund may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Fund. Such large shareholder redemptions may cause the Fund to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Fund's net asset value ("NAV") and liquidity. Similarly, large Fund share purchases may adversely affect a Fund's performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs.

The Fund is subject to certain other risks, which are discussed in "Additional Information Regarding Investment Strategies and Risks" and "More Information About Risks" in the Fund's statutory prospectus.
Risk Lose Money [Text] rr_RiskLoseMoney
When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. 
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 performance information below indicates the risks of investing in the Fund. The performance information shown below for Class A and Class I shares reflects the historical performance, fees and expenses of the then-existing Advisor and Investor Class shares, respectively, of the Schroder Emerging Markets Multi-Sector Bond Fund (the "Predecessor Fund"). Performance information for Class C, Class R3, Class R4, Class R5, and Class Y shares reflects the performance, fees and expenses of the Predecessor Fund's Investor Class shares. The Fund has a substantially similar investment objective as that of its Predecessor Fund, and SIMNA served as the investment manager to the Predecessor Fund. Keep in mind that past performance does not indicate future results. Updated performance information is available at www.hartfordfunds.com.

The returns:

•  Assume reinvestment of all dividends and distributions

•  Would be different if the Fund's fees and expenses were reflected.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns
The performance information below indicates the risks of investing in the Fund. Shows how the Fund's total return has varied from year to year.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress
www.hartfordfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture
Keep in mind that past performance does not indicate future results.
Bar Chart [Heading] rr_BarChartHeading
Total returns by calendar year (excludes sales charges)
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

The bar chart:

•  Shows how the Fund's total return has varied from year to year

•  Does not include the effect of sales charges. If sales charges were reflected in the bar chart, returns would have been lower

•  Shows the returns of the Fund's Class A shares. Because all of the Fund's shares are invested in the same portfolio of securities, returns for the Fund's other classes differ only to the extent that the classes do not have the same expenses.
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads
Does not include the effect of sales charges. If sales charges were reflected in the bar chart, returns would have been lower
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Highest/Lowest quarterly results during the periods shown in the bar chart were:

Highest 6.03% (2nd quarter, 2014)    Lowest -7.71% (3rd quarter, 2015)

The year-to-date return for the Fund's Class A shares as of September 30, 2016 is 16.04%.
Performance Table Heading rr_PerformanceTableHeading
Average Annual Total Returns.
Performance Table Does Reflect Sales Loads rr_PerformanceTableDoesReflectSalesLoads
including sales charges
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes
reflects no deduction for fees, expenses or taxes
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate
After-tax returns, which are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes,
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred
Actual after-tax returns, which depend on an investor's particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown
are shown only for Class A shares and will vary for other classes.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
The table below shows returns for the Fund over time compared to those of three broad-based market indices and the Fund's blended benchmark. After-tax returns, which are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes, are shown only for Class A shares and will vary for other classes. Performance information for Class A shares reflects the performance, fees and expenses of the Predecessor Fund's Advisor Class shares. Actual after-tax returns, which depend on an investor's particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. For more information regarding returns, see the "Performance Notes" section in the Fund's statutory prospectus.
Caption rr_AverageAnnualReturnCaption
Average annual total returns for periods ending December 31, 2015 (including sales charges)
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none [1]
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25% [2]
Total other expenses rr_OtherExpensesOverAssets 0.51% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets none [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.51% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.46% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.31% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.15% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 562
Year 3 rr_ExpenseExampleYear03 862
Year 5 rr_ExpenseExampleYear05 1,183
Year 10 rr_ExpenseExampleYear10 2,092
Year 1 rr_ExpenseExampleNoRedemptionYear01 562
Year 3 rr_ExpenseExampleNoRedemptionYear03 862
Year 5 rr_ExpenseExampleNoRedemptionYear05 1,183
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 2,092
2014 rr_AnnualReturn2014 (1.28%)
2015 rr_AnnualReturn2015 (4.48%)
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2016
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 16.04%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2014
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.03%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.71%)
Label rr_AverageAnnualReturnLabel Class A - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (8.74%)
Since Inception rr_AverageAnnualReturnSinceInception (3.39%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00% [2]
Total other expenses rr_OtherExpensesOverAssets 0.51% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets none [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.51% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 2.21% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.31% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.90% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 293
Year 3 rr_ExpenseExampleYear03 661
Year 5 rr_ExpenseExampleYear05 1,156
Year 10 rr_ExpenseExampleYear10 2,520
Year 1 rr_ExpenseExampleNoRedemptionYear01 193
Year 3 rr_ExpenseExampleNoRedemptionYear03 661
Year 5 rr_ExpenseExampleNoRedemptionYear05 1,156
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 2,520
Label rr_AverageAnnualReturnLabel Class C - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (5.19%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none [2]
Total other expenses rr_OtherExpensesOverAssets 0.45% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets none [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.45% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.15% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.25% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.90% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 92
Year 3 rr_ExpenseExampleYear03 341
Year 5 rr_ExpenseExampleYear05 609
Year 10 rr_ExpenseExampleYear10 1,375
Year 1 rr_ExpenseExampleNoRedemptionYear01 92
Year 3 rr_ExpenseExampleNoRedemptionYear03 341
Year 5 rr_ExpenseExampleNoRedemptionYear05 609
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 1,375
Label rr_AverageAnnualReturnLabel Class I - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.26%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class R3  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50% [2]
Total other expenses rr_OtherExpensesOverAssets 0.52% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets 0.20% [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.32% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.72% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.27% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.45% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 148
Year 3 rr_ExpenseExampleYear03 516
Year 5 rr_ExpenseExampleYear05 908
Year 10 rr_ExpenseExampleYear10 2,008
Year 1 rr_ExpenseExampleNoRedemptionYear01 148
Year 3 rr_ExpenseExampleNoRedemptionYear03 516
Year 5 rr_ExpenseExampleNoRedemptionYear05 908
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 2,008
Label rr_AverageAnnualReturnLabel Class R3 - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.26%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class R4  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25% [2]
Total other expenses rr_OtherExpensesOverAssets 0.47% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets 0.15% [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.32% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.42% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.27% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.15% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 117
Year 3 rr_ExpenseExampleYear03 423
Year 5 rr_ExpenseExampleYear05 751
Year 10 rr_ExpenseExampleYear10 1,679
Year 1 rr_ExpenseExampleNoRedemptionYear01 117
Year 3 rr_ExpenseExampleNoRedemptionYear03 423
Year 5 rr_ExpenseExampleNoRedemptionYear05 751
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 1,679
Label rr_AverageAnnualReturnLabel Class R4 - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.26%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class R5  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none [2]
Total other expenses rr_OtherExpensesOverAssets 0.42% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets 0.10% [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.32% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.12% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.27% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.85% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 87
Year 3 rr_ExpenseExampleYear03 329
Year 5 rr_ExpenseExampleYear05 591
Year 10 rr_ExpenseExampleYear10 1,339
Year 1 rr_ExpenseExampleNoRedemptionYear01 87
Year 3 rr_ExpenseExampleNoRedemptionYear03 329
Year 5 rr_ExpenseExampleNoRedemptionYear05 591
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 1,339
Label rr_AverageAnnualReturnLabel Class R5 - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.26%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class Y  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none [2]
Total other expenses rr_OtherExpensesOverAssets 0.36% [2]
Administrative services fee rr_Component1OtherExpensesOverAssets none [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.36% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.06% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.26% [2],[3]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.80% [2],[3]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 82
Year 3 rr_ExpenseExampleYear03 311
Year 5 rr_ExpenseExampleYear05 560
Year 10 rr_ExpenseExampleYear10 1,271
Year 1 rr_ExpenseExampleNoRedemptionYear01 82
Year 3 rr_ExpenseExampleNoRedemptionYear03 311
Year 5 rr_ExpenseExampleNoRedemptionYear05 560
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 1,271
Label rr_AverageAnnualReturnLabel Class Y - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.26%)
Since Inception rr_AverageAnnualReturnSinceInception (1.46%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | After Taxes on Distributions | Class A  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (9.38%)
Since Inception rr_AverageAnnualReturnSinceInception (5.07%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | After Taxes on Distributions and Sales | Class A  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class A - After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 (4.94%)
Since Inception rr_AverageAnnualReturnSinceInception (3.26%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan EMBI Global Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan EMBI Global Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.18%
Since Inception rr_AverageAnnualReturnSinceInception 5.38%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan GBI Emerging Markets Global Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan GBI Emerging Markets Global Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 (14.92%)
Since Inception rr_AverageAnnualReturnSinceInception (8.54%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan CEMBI Broad Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan CEMBI Broad Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.30%
Since Inception rr_AverageAnnualReturnSinceInception 4.20%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund (Prospectus Summary) | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Emerging Markets Multi-Sector Bond Fund Blended Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Emerging Markets Multi-Sector Bond Fund Blended Index (reflects no deduction for fees, expenses or taxes) [4]
1 Year rr_AverageAnnualReturnYear01 (4.39%) [4]
Since Inception rr_AverageAnnualReturnSinceInception 0.21% [4]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013 [4]
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading
Hartford Schroders Emerging Markets Multi-Sector Bond Fund Summary Section
Objective [Heading] rr_ObjectiveHeading
INVESTMENT OBJECTIVE.
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks to provide a return of long-term capital growth and income.
Expense [Heading] rr_ExpenseHeading
YOUR EXPENSES.
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund.
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)
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 examples, affect the Fund's performance. During the most recent fiscal year, the Predecessor Fund's portfolio turnover rate was 209% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 209.00%
Expense Example [Heading] rr_ExpenseExampleHeading
Example.
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

The examples below are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The examples assume that:

•  Your investment has a 5% return each year

•  The Fund's operating expenses remain the same (except that the examples reflect the expense limitation arrangements for only the first year)

•  You reinvest all dividends and distributions

•  You pay any deferred sales charge due for the applicable period.

Your actual costs may be higher or lower. Based on these assumptions, for every $10,000 invested, you would pay the following expenses if you sell all of your shares at the end of each time period indicated:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption
You would pay the following expenses if you did not redeem your shares:
Strategy [Heading] rr_StrategyHeading
PRINCIPAL INVESTMENT STRATEGY.
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its assets in bonds of issuers located in emerging market countries. Bonds in which the Fund may invest may be obligations of governments or government agencies or instrumentalities, supra-national issuers, or corporate issuers. Such bonds may pay fixed, variable, or floating interest rates and may include government securities, debt securities of corporations, asset-backed securities, mortgage-backed securities, zero-coupon securities, convertible securities, inflation-indexed bonds, structured notes, including credit-linked notes and hybrid or "indexed" securities, event-linked bonds, and loan participations, delayed funding loans and revolving credit facilities, and short-term investments. The value of the Fund's investments in derivatives or other synthetic instruments described below that provide exposure comparable, in the judgment of the sub-adviser, Schroder Investment Management North America Inc. ("SIMNA" or the "Sub-Adviser"), to investments in bonds may be counted toward satisfaction of the 80% policy described above.

The Fund's assets will be allocated actively among sectors within the fixed-income market based on the Sub-Adviser's assessment of their relative values and the risks and rewards they present. In selecting investments for the Fund, the Sub-Adviser seeks to identify bonds that offer what it considers the best possible risk/reward profile. Securities may be denominated in emerging market currencies, in the U.S. dollar, or in other developed-market currencies, depending on the Sub-Adviser's view of the relative values and risks of investments in the various currencies. The Fund may invest in securities rated in any rating category and in unrated securities, and it may invest any portion of its assets in securities rated below investment grade or in unrated securities considered by the Sub-Adviser to be of comparable quality (so-called "junk bonds"). The Fund may invest in debt securities of any maturity or duration. The Sub-Adviser's investment process may result in frequent trading of the Fund's portfolio securities. The Fund may invest up to 20% of its assets in asset-backed and mortgage-backed securities. The Fund is a non-diversified mutual fund.
Risk [Heading] rr_RiskHeading
PRINCIPAL RISKS.
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

The principal risks of investing in the Fund are described below. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. 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. As with any fund, there is no guarantee that the Fund will achieve its investment objective. For more information regarding risks and investment matters, please see "Additional Information Regarding Investment Strategies and Risks" and "More Information About Risks" in the Fund's statutory prospectus.

Market Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities may decline in value due to the activities and financial prospects of individual companies or to general market and economic movements and trends, including adverse changes to credit markets.

Foreign Investments Risk – Investments in foreign securities may be riskier than investments in U.S. securities. Differences between the U.S. and foreign regulatory regimes and securities markets, including the less stringent investor protection and disclosure standards of some foreign markets, as well as political and economic developments in foreign countries and regions, may affect the value of the Fund's investments in foreign securities. Changes in currency exchange rates may also adversely affect the Fund's foreign investments.

Emerging Markets Risk – The risks related to investing in foreign securities are generally greater with respect to investments in companies that conduct their principal business activities in emerging markets or whose securities are traded principally on exchanges in emerging markets. The risks of investing in emerging markets include risks of illiquidity, increased price volatility, smaller market capitalizations, less government regulation, less extensive and less frequent accounting, financial and other reporting requirements, significant delays in settlement of trades, risk of loss resulting from problems in share registration and custody and substantial economic and political disruptions. Frontier markets are those emerging markets that are considered to be among the smallest, least mature and least liquid, and as a result, the risks of investing in emerging markets are magnified in frontier markets.

Interest Rate Risk – The risk that your investment may go down in value when interest rates rise, because when interest rates rise, the prices of bonds and fixed rate loans fall. A wide variety of factors can cause interest rates to rise, including central bank monetary policies and inflation rates. Generally, the longer the maturity of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund's income. These risks are greater during periods of rising inflation. Volatility in interest rates and in fixed income markets may increase the risk that the Fund's investment in fixed income securities will go down in value. Risks associated with rising interest rates are currently heightened because interest rates in the U.S. are at, or near, historic lows.

Credit Risk – Credit risk is the risk that the issuer of a security or other instrument will not be able to make principal and interest payments when due. Changes in an issuer's financial strength, credit rating or the market's perception of an issuer's creditworthiness may also affect the value of the Fund's investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.

Currency Risk – The risk that the value of the Fund's investments in foreign securities or currencies will be affected by the value of the applicable currency relative to the U.S. dollar. When the Fund sells a foreign currency or foreign currency denominated security, its value may be worth less in U.S. dollars even if the investment increases in value in its local market. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the revenue earned by issuers of these securities may also be affected by changes in the issuer's local currency.

Non-Diversification Risk – The Fund is non-diversified, which means it is permitted to invest a greater portion of its assets in a smaller number of issuers than a "diversified" fund. For this reason the Fund may be more exposed to the risks associated with and developments affecting an individual issuer than a fund that invests more widely. The Fund may also be subject to greater market fluctuation and price volatility than a more broadly diversified fund.

High Yield Investments Risk – High yield investments rated below investment grade (also referred to as "junk bonds") are considered to be speculative and are subject to heightened credit risk, which may make the Fund more sensitive to adverse developments in the U.S. and abroad. Lower rated debt securities generally involve greater risk of default or price changes due to changes in the issuer's creditworthiness than higher rated debt securities. The market prices of these securities may fluctuate more than higher quality securities and may decline significantly in periods of general economic difficulty. There may be little trading in the secondary market for particular debt securities, which may make them more difficult to value or sell.

Convertible Securities Risk – Debt securities that are convertible into preferred or common stocks are subject to the risks of both debt and equity securities.

Liquidity Risk – The risk that the market for a particular investment or type of investment is or becomes relatively illiquid, making it difficult for the Fund to sell that investment at an advantageous time or price. Illiquidity may be due to events relating to the issuer of the securities, market events, rising interest rates, economic conditions or investor perceptions. Illiquid securities may be difficult to value and their value may be lower than the market price of comparable liquid securities, which would negatively affect the Fund's performance.

Derivatives Risk – Derivatives are instruments whose value depends on, or is derived from, the value of an underlying asset, reference rate or index. Derivatives may be riskier than other types of investments because they may be more sensitive to changes in economic or market conditions than other types of investments and could result in losses that significantly exceed the Fund's original investment. Successful use of derivative instruments by the Fund depends on the sub-adviser's judgment with respect to a number of factors and the Fund's performance could be worse and/or more volatile than if it had not used these instruments. In addition, the fluctuations in the value of derivatives may not correlate perfectly with the value of any portfolio assets being hedged, the performance of the asset class to which the sub-adviser seeks exposure, or the overall securities markets.

Swaps Risk – A swap is a two-party contract that generally obligates the parties to exchange payments based on a specified reference security, basket of securities, security index or index component. Swaps can involve greater risks than direct investment in securities because swaps may be leveraged and are subject to counterparty risk (e.g., the risk of a counterparty defaulting on the obligation or bankruptcy), credit risk and pricing risk (i.e., swaps may be difficult to value). Certain swaps may also be considered illiquid. It may not be possible for the Fund to liquidate a swap position at an advantageous time or price, which may result in significant losses.

Futures and Options Risks – Futures and options may be more volatile than direct investments in the securities underlying the futures and options, may not correlate perfectly to the underlying securities, may involve additional costs, and may be illiquid. Futures and options also may involve the use of leverage as the Fund may make a small initial investment relative to the risk assumed, which could result in losses greater than if futures or options had not been used. Futures and options are also subject to the risk that the other party to the transaction may default on its obligation.

Counterparty Risk – The risk that the counterparty in a transaction by the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise to honor its obligations.

Active Trading Risk – Active trading could increase the Fund's transaction costs and may increase your tax liability as compared to a fund with less active trading policies. These effects may adversely affect Fund performance.

Volatility Risk – Share price, yield and total return may fluctuate more than with funds that use a different investment strategy.

Leverage Risk – Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. Leverage may also cause the Fund to be more volatile than if it had not been leveraged. The use of leverage may cause the Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so.

Investment Strategy Risk – The risk that, if the Sub-Adviser's investment strategy does not perform as expected, the Fund could underperform its peers or lose money. There is no guarantee that the Fund's investment objective will be achieved.

Large Shareholder Transaction Risk – The Fund may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Fund. Such large shareholder redemptions may cause the Fund to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the Fund's net asset value ("NAV") and liquidity. Similarly, large Fund share purchases may adversely affect a Fund's performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs.

The Fund is subject to certain other risks, which are discussed in "Additional Information Regarding Investment Strategies and Risks" and "More Information About Risks" in the Fund's statutory prospectus.
Risk Lose Money [Text] rr_RiskLoseMoney
When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment.
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 performance information below indicates the risks of investing in the Fund. The performance information shown below for Class SDR shares reflects the historical performance, fees and expenses of the then-existing Class R6 Shares of the Schroder Emerging Markets Multi-Sector Bond Fund (the "Predecessor Fund") and, prior to December 30, 2014, the Investor Class shares of the Predecessor Fund. The Fund has a substantially similar investment objective as that of its Predecessor Fund, and SIMNA served as the investment manager to the Predecessor Fund. Keep in mind that past performance does not indicate future results. Updated performance information is available at www.hartfordfunds.com.

The returns:

•  Assume reinvestment of all dividends and distributions

•  Would be different if the Fund's fees and expenses were reflected.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns
The performance information below indicates the risks of investing in the Fund. Shows how the Fund's total return has varied from year to year.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress
www.hartfordfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture
Keep in mind that past performance does not indicate future results.
Bar Chart [Heading] rr_BarChartHeading
Total returns by calendar year
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock

The bar chart:

•  Shows how the Fund's total return has varied from year to year.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

Highest/Lowest quarterly results during the periods shown in the bar chart were:

Highest 5.97% (2nd quarter, 2014)    Lowest -7.58% (3rd quarter, 2015)

The year-to-date return for the Fund's Class SDR shares as of September 30, 2016 is 16.44%.
Performance Table Heading rr_PerformanceTableHeading
Average Annual Total Returns.
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes
reflects no deduction for fees, expenses or taxes
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate
After-tax returns, which are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes,
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred
Actual after-tax returns, which depend on an investor's particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown
are shown only for Class SDR shares and will vary for other classes.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
The table below shows returns for the Fund over time compared to those of three broad-based market indices and the Fund's blended benchmark. After-tax returns, which are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes, are shown only for Class SDR shares and will vary for other classes. Performance information for Class SDR shares reflects the performance, fees and expenses of the Predecessor Fund's Class R6 shares and, prior to December 30, 2014, the Predecessor Fund's Investor Class shares. Actual after-tax returns, which depend on an investor's particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. For more information regarding returns, see the "Performance Notes" section in the Fund's statutory prospectus.
Caption rr_AverageAnnualReturnCaption
Average annual total returns for periods ending December 31, 2015
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Class SDR  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.70% [2]
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none [2]
Other expenses rr_Component2OtherExpensesOverAssets 0.31% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.01% [2]
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.26% [2],[5]
Total annual fund operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 0.75% [2],[5]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination February 28, 2018
Year 1 rr_ExpenseExampleYear01 $ 77
Year 3 rr_ExpenseExampleYear03 296
Year 5 rr_ExpenseExampleYear05 533
Year 10 rr_ExpenseExampleYear10 1,213
Year 1 rr_ExpenseExampleNoRedemptionYear01 77
Year 3 rr_ExpenseExampleNoRedemptionYear03 296
Year 5 rr_ExpenseExampleNoRedemptionYear05 533
Year 10 rr_ExpenseExampleNoRedemptionYear10 $ 1,213
2014 rr_AnnualReturn2014 (1.23%)
2015 rr_AnnualReturn2015 (4.11%)
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2016
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 16.44%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2014
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 5.97%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.58%)
Label rr_AverageAnnualReturnLabel Class SDR - Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (4.11%)
Since Inception rr_AverageAnnualReturnSinceInception (1.35%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | After Taxes on Distributions | Class SDR  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class SDR - After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (4.91%)
Since Inception rr_AverageAnnualReturnSinceInception (3.18%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | After Taxes on Distributions and Sales | Class SDR  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Class SDR - After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 (2.31%)
Since Inception rr_AverageAnnualReturnSinceInception (1.79%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan EMBI Global Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan EMBI Global Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.18%
Since Inception rr_AverageAnnualReturnSinceInception 5.38%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan GBI Emerging Markets Global Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan GBI Emerging Markets Global Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 (14.92%)
Since Inception rr_AverageAnnualReturnSinceInception (8.54%)
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | JP Morgan CEMBI Broad Diversified Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel JP Morgan CEMBI Broad Diversified Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 1.30%
Since Inception rr_AverageAnnualReturnSinceInception 4.20%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013
Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Hartford Schroders Emerging Markets Multi-Sector Bond Fund | Emerging Markets Multi-Sector Bond Fund Blended Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Emerging Markets Multi-Sector Bond Fund Blended Index (reflects no deduction for fees, expenses or taxes) [4]
1 Year rr_AverageAnnualReturnYear01 (4.39%) [4]
Since Inception rr_AverageAnnualReturnSinceInception 0.21% [4]
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 25, 2013 [4]
[1] For investments over $1 million, a 1.00% maximum deferred sales charge may apply.
[2] Fees and expenses are estimated for the current fiscal year.
[3] Hartford Funds Management Company, LLC (the "Investment Manager") has contractually agreed to reimburse expenses (exclusive of taxes, interest expenses, brokerage commissions, acquired fund fees and expenses and extraordinary expenses) to the extent necessary to maintain total annual fund operating expenses as follows: 1.15% (Class A), 1.90% (Class C), 0.90% (Class I), 1.45% (Class R3), 1.15% (Class R4), 0.85% (Class R5), and 0.80% (Class Y). This contractual arrangement will remain in effect for a period of two years from the date of the reorganization of the Predecessor Fund (as defined below) into the Fund. In addition, Hartford Administrative Services Company ("HASCO"), the Fund's transfer agent, has contractually agreed to reimburse any portion of the transfer agency fees over 0.30% of the average daily net assets per fiscal year for all classes. This contractual arrangement will remain in effect until February 28, 2018 and shall renew automatically for one-year terms thereafter unless HASCO provides written notice of termination prior to the start of the next term or upon approval of the Board of Directors of The Hartford Mutual Funds II, Inc.
[4] The Emerging Markets Multi-Sector Bond Fund Blended Index is calculated by the Investment Manager and represents the weighted return of the JP Morgan EMBI Global Diversified Index (33.4%), the JP Morgan GBI Emerging Markets Global Diversified Index (33.3%), and the JP Morgan CEMBI Broad Diversified Index (33.3%).
[5] Hartford Funds Management Company, LLC (the "Investment Manager") has contractually agreed to reimburse expenses (exclusive of taxes, interest expenses, brokerage commissions, acquired fund fees and expenses and extraordinary expenses) to the extent necessary to maintain total annual fund operating expenses at 0.75% for Class SDR. This contractual arrangement will remain in effect for a period of two years from the date of the reorganization of the Predecessor Fund (as defined below) into the Fund. In addition, Hartford Administrative Services Company ("HASCO"), the Fund's transfer agent, has contractually agreed to reimburse any portion of the transfer agency fees over 0.30% of the average daily net assets per fiscal year for Class SDR. This contractual arrangement will remain in effect until February 28, 2018 and shall renew automatically for one-year terms thereafter unless HASCO provides written notice of termination prior to the start of the next term or upon approval of the Board of Directors of The Hartford Mutual Funds II, Inc.