485BPOS

1933 Act File No.	33-43472
1940 Act File No.	811-6447

Form N-1A

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
	Pre-Effective Amendment No.
	Post-Effective Amendment No.	65
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
	Amendment No.	65

FEDERATED FIXED INCOME SECURITIES, INC.

(Exact Name of Registrant as Specified in Charter)

Federated Investors Funds

4000 Ericsson Drive

Warrendale, PA 15086-7561

(Address of Principal Executive Offices)

(412) 288-1900

(Registrant’s Telephone Number, including Area Code)

John W. McGonigle, Esquire

Federated Investors Tower

Pittsburgh, Pennsylvania 15222-3779

(Name and Address of Agent for Service)

It is proposed that this filing will become effective (check appropriate box):
X	immediately upon filing pursuant to paragraph (b)
	on	pursuant to paragraph (b)
	60 days after filing pursuant to paragraph (a)(1)
	on	pursuant to paragraph (a)(1)
	75 days after filing pursuant to paragraph (a)(2)
	on	pursuant to paragraph (a)(2) of Rule 485
If appropriate, check the following box:
	This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, and the Investment Company Act of 1940, the Registrant, FEDERATED FIXED INCOME SECURITIES, INC., certifies that it meets all of the requirements for effectiveness of this Amendment to its Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Pittsburgh and Commonwealth of Pennsylvania, on the 15th day of February, 2013.
FEDERATED FIXED INCOME SECURITIES, INC.
BY: /s/ Alicia G. Powell Alicia G. Powell, Assistant Secretary
Pursuant to the requirements of the Securities Act of 1933, this Amendment to its Registration Statement has been signed below by the following person in the capacity and on the date indicated:
NAME	TITLE	DATE
BY: /s/ Alicia G. Powell Alicia G. Powell, Assistant Secretary	Attorney In Fact For the Persons Listed Below	February 15, 2013
John F. Donahue *	Director
J. Christopher Donahue *	President and Director(Principal Executive Officer)
Richard A. Novak*	Treasurer (Principal Financial Officer)
John F. Cunningham*	Director
Maureen Lally-Green*	Director
Peter E. Madden*	Director
Charles F. Mansfield, Jr.*	Director
Thomas O’Neill*	Director
John S. Walsh*	Director
*By Power of Attorney

Federated Municipal Ultrashort Fund

A portfolio of Federated Fixed Income Securities, Inc.

Post-Effective Amendment No. 65

This Post-Effective Amendment is filed for the sole purpose of submitting the XBRL Interactive Data File exhibits for the Risk/Return Summaries of the above-named Fund filed as part of Post-Effective Amendment No. 64 on January 28, 2013. The exhibits filed herewith do not constitute the complete publicly filed disclosure for the Fund, and should be used in conjunction with the complete prospectuses for the Fund.

Exhibit List for Interactive Data File Submissions.

EX-101.INS	INSTANCE
EX-101.SCH	SCHEMA
EX-101.CAL	CALCULATION LINKBASE
EX-101.DEF	DEFINITION LINKBASE
EX-101.LAB	LABEL LINKBASE
EX-101.PRE	PRESENTATION LINKBASE

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	FEDERATED FIXED INCOME SECURITIES INC
Prospectus Date	rr_ProspectusDate	Jan. 31, 2013
Federated Strategic Income Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Federated Strategic Income Fund (the "Fund")
Objective [Heading]	rr_ObjectiveHeading	RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund's investment objective is to seek a high level of current income.
Expense [Heading]	rr_ExpenseHeading	RISK/RETURN SUMMARY: FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold Class A Shares (A), Class B Shares (B), Class C Shares (C), Class F Shares (F) and Institutional Shares (IS) 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 $100,000, or $1,000,000, in certain classes (e.g., A class and F class, respectively) of Federated funds. More information about these and other discounts is available from your financial professional and in the "What Do Shares Cost?" section of the Prospectus on page 16.
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	February 1, 2014
Fee Waiver Or Reimbursement Over Assets Later Of Termination Date Or Next Effective Prospectus	ffisi2_FeeWaiverOrReimbursementOverAssetsLaterOfTerminationDateOrNextEffectiveProspectus	up to but not including the later of (the "Termination Date"): (a) February 1, 2014; or (b) the date of the Fund's next effective Prospectus.
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 the most recent fiscal year, the Fund's portfolio turnover rate was 7% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	7.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000, or $1,000,000, in certain classes (e.g., A class and F class, respectively) of Federated funds.
Expense Example [Heading]	rr_ExpenseExampleHeading	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. The Example assumes that you invest $10,000 for the time periods indicated and then redeem all of your Shares at the end of those periods. Expenses assuming no redemption are also shown. The Example also assumes that your investment has a 5% return each year and that operating expenses are as shown in the table above and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE What are the Fund's Main Investment Strategies?
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund allocates the portfolio among three categories of fixed-income securities: domestic investment-grade (including U.S. government, mortgage-backed and corporate), domestic noninvestment-grade corporate (also known as junk bonds) and foreign investment and noninvestment-grade (including corporate and government securities traded in both emerging and developed markets). Based upon historical returns, the Fund's investment adviser ("Adviser") expects the three categories of investments to have different returns and risks under similar market conditions. The Adviser relies on the differences in the expected performance of each category to manage risks by allocating the Fund's portfolio among the three categories. The Adviser seeks to enhance the Fund's performance by allocating more of its portfolio to the category that the Adviser expects to offer the best balance between risk and return. While the Fund's portfolio usually includes securities from all three categories, the Fund limits the amount it may invest in a single category to 50% of its assets. The Fund may also invest in derivative contracts or hybrid instruments (such as, for example, futures contracts, option contracts and swap contracts) to implement its investment strategies as more fully described herein. The Adviser does not target an average maturity for the Fund's portfolio and may invest in bonds of any maturity. Certain of the government securities in which the Fund invests are not backed by the full faith and credit of the U.S. government, such as those issued by the Federal Home Loan Mortgage Corporation ("Freddie Mac"), the Federal National Mortgage Association ("Fannie Mae") and the Federal Home Loan Bank System. These entities are, however, supported through federal subsidies, loans or other benefits. The Fund may also invest in government securities that are supported by the full faith and credit of the U.S. government, such as those issued by the Government National Mortgage Association ("Ginnie Mae"). Finally, the Fund may invest in a few government securities that have no explicit financial support, but which are regarded as having implied support because the federal government sponsors their activities. Because the Fund refers to fixed-income investments in its name, it will notify shareholders at least 60 days in advance of any change in its investment policies that would enable the Fund to normally invest less than 80% of its assets in fixed-income investments.
Risk [Heading]	rr_RiskHeading	What are the Main Risks of Investing in the Fund?
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include: Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. Interest rate changes have a greater effect on the price of fixed-income securities with longer durations. Duration measures the price sensitivity of a fixed-income security to changes in interest rates. Prepayment Risk. When homeowners prepay their mortgages in response to lower interest rates, the Fund will be required to reinvest the proceeds at the lower interest rates available. Also, when interest rates fall, the price of mortgage-backed securities may not rise to as great an extent as that of other fixed-income securities. Call Risk. An issuer may redeem a fixed-income security before maturity (a call) at a price below its current market price. Credit Risk. It is possible that interest or principal on securities will not be paid when due. Noninvestment-grade securities generally have a higher default risk than investment-grade securities. Such non-payments or default may reduce the value of the Fund's portfolio holdings, its share price and its performance. Risk Associated with Noninvestment-Grade Securities. The Fund may invest a portion of its assets in securities rated below investment grade which may be subject to greater interest rate, credit and liquidity risks than investment-grade securities. Risk Related to the Economy. Low-grade corporate bond returns are sensitive to changes in the economy. The value of the Fund's portfolio may decline in tandem with a drop in the overall value of the stock market based on negative developments in the U.S. and global economies. Currency Risk. Exchange rates for currencies fluctuate daily. Accordingly, the Fund may experience increased volatility with respect to the value of its Shares and its returns as a result of its exposure to foreign currencies through direct holding of such currencies or holding of non-U.S. dollar denominated securities. Eurozone Related Risk. A number of countries in the European Union (EU) have experienced, and may continue to experience, severe economic and financial difficulties. Additional EU member countries may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund's investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries. Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies, the Fund's Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than would otherwise be the case. Risk of Investing in Emerging Market Countries. Securities issued or traded in emerging markets generally entail greater risks than securities issued or traded in developed markets. Emerging market economies may also experience more severe downturns (with corresponding currency devaluations) than developed economies. Liquidity Risk. The fixed-income securities in which the Fund invests may be less readily marketable and may be subject to greater fluctuation in price than other securities. Liquidity risk also refers to the possibility that the Fund may not be able to sell a security or close out a derivative contract when it wants to. If this happens, the Fund could incur losses. Leverage Risk. Leverage risk is created when an investment exposes the Fund to a level of risk that exceeds the amount invested. Changes in the value of such an investment magnify the Fund's risk of loss and potential for gain. Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risks different from, or possibly greater than, risks associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus or the Fund's Statement of Additional Information (SAI), such as interest rate, credit, currency, liquidity and leverage risks. Risk of Loss after Redemption. The Fund may also invest in trade finance loan instruments primarily by investing in other investment companies (which are not available for general investment by the public) that owns those instruments and that are advised by an affiliate of the Adviser and is structured as an extended payment fund (EPF). In the EPF, the Fund, as shareholder, will bear the risk of investment loss during the period between when shares of such EPF are presented to the transfer agent of the EPF for redemption and when the net asset value of the EPF is determined for payment of the redeemed EPF shares (the "Redemption Pricing Date"). Technology Risk. Proprietary and third-party data and systems are utilized to support decision making for the Fund. Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance. The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance: Bar Chart and Table Risk/Return Bar Chart
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's A class total returns on a calendar year-by-year basis. The Average Annual Total Return table shows returns averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the "Products" section at FederatedInvestors.com or by calling 1-800-341-7400.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the variability of the Fund's A class total returns on a calendar year-by-year basis.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-800-341-7400
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	FederatedInvestors.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results.
Bar Chart [Heading]	rr_BarChartHeading	Federated Strategic Income Fund - A Class
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The total returns shown in the bar chart do not reflect the payment of any sales charges or recurring shareholder account fees. If these charges or fees had been included, the returns shown would have been lower. Within the periods shown in the bar chart, the Fund's A class highest quarterly return was 12.80% (quarter ended June 30, 2009). Its lowest quarterly return was (9.81)% (quarter ended December 31, 2008).
Performance Table Heading	rr_PerformanceTableHeading	Average Annual Total Return Table
Performance Table Market Index Changed	rr_PerformanceTableMarketIndexChanged	The Fund's investment adviser has elected to change the Fund's broad-based securities market index to the "Barclays U.S. Aggregate Bond Index" (BAB) from the "Barclays U.S. Government/Credit Index" (BGCI). The BAB is better aligned with the Fund's sector allocations. The BAB covers the investment-grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, agency mortgage pass-through securities, asset-backed securities and commercial mortgage-backed securities.
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	After-tax returns are not relevant to investors holding Shares through tax-deferred programs, such as a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown only for the A class and after-tax returns for the B, C, F and IS classes will differ from those shown above for the A class.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The Fund's IS class commenced operations on January 28, 2008. For the period prior to the commencement of operations of the IS class, the performance information shown below is for the A class. The performance of the A class has not been adjusted to reflect the expenses applicable to the IS class since the IS class has a lower expense ratio than the expense ratio of the A class. The performance of the A class has been adjusted to reflect the absence of sales charges and adjusted to remove any voluntary waiver of Fund expenses related to the A class that may have occurred during the period prior to the commencement of operations of the IS class. In addition to Return Before Taxes, Return After Taxes is shown for the Fund's A class to illustrate the effect of federal taxes on Fund returns. After-tax returns are shown only for the A class and after-tax returns for the B, C, F and IS classes will differ from those shown above for the A class. Actual after-tax returns depend on each investor's personal tax situation, and are likely to differ from those shown. After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical federal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. After-tax returns are not relevant to investors holding Shares through tax-deferred programs, such as a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plan. (For the Period Ended December 31, 2012)
Federated Strategic Income Fund | A
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.50%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.85%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.47%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.33%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	0.06%	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.27%
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	100,000
1 Year	rr_ExpenseExampleYear01	579
3 Years	rr_ExpenseExampleYear03	852
5 Years	rr_ExpenseExampleYear05	1,146
10 Years	rr_ExpenseExampleYear10	1,979
1 Year	rr_ExpenseExampleNoRedemptionYear01	579
3 Years	rr_ExpenseExampleNoRedemptionYear03	852
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,146
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,979
2003	rr_AnnualReturn2003	22.30%
2004	rr_AnnualReturn2004	8.94%
2005	rr_AnnualReturn2005	3.18%
2006	rr_AnnualReturn2006	8.75%
2007	rr_AnnualReturn2007	4.86%
2008	rr_AnnualReturn2008	(14.05%)
2009	rr_AnnualReturn2009	33.14%
2010	rr_AnnualReturn2010	11.41%
2011	rr_AnnualReturn2011	4.93%
2012	rr_AnnualReturn2012	10.63%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest quarterly return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	12.80%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest quarterly return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(9.81%)
1 Year	rr_AverageAnnualReturnYear01	5.59%
5 Years	rr_AverageAnnualReturnYear05	7.17%
10 Years	rr_AverageAnnualReturnYear10	8.28%
Federated Strategic Income Fund | B
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	5.50%
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.85%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.47%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.08%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	0.06%	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	2.02%
1 Year	rr_ExpenseExampleYear01	761
3 Years	rr_ExpenseExampleYear03	1,052
5 Years	rr_ExpenseExampleYear05	1,319
10 Years	rr_ExpenseExampleYear10	2,219
1 Year	rr_ExpenseExampleNoRedemptionYear01	211
3 Years	rr_ExpenseExampleNoRedemptionYear03	652
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,119
10 Years	rr_ExpenseExampleNoRedemptionYear10	2,219
1 Year	rr_AverageAnnualReturnYear01	4.31%
5 Years	rr_AverageAnnualReturnYear05	7.05%
10 Years	rr_AverageAnnualReturnYear10	8.13%
Federated Strategic Income Fund | C
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	1.00%
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.85%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	0.75%
Other Expenses	rr_OtherExpensesOverAssets	0.47%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.08%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	0.06%	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	2.02%
1 Year	rr_ExpenseExampleYear01	311
3 Years	rr_ExpenseExampleYear03	652
5 Years	rr_ExpenseExampleYear05	1,119
10 Years	rr_ExpenseExampleYear10	2,410
1 Year	rr_ExpenseExampleNoRedemptionYear01	211
3 Years	rr_ExpenseExampleNoRedemptionYear03	652
5 Years	rr_ExpenseExampleNoRedemptionYear05	1,119
10 Years	rr_ExpenseExampleNoRedemptionYear10	2,410
1 Year	rr_AverageAnnualReturnYear01	8.93%
5 Years	rr_AverageAnnualReturnYear05	7.35%
10 Years	rr_AverageAnnualReturnYear10	7.97%
Federated Strategic Income Fund | F
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	1.00%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	1.00%
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.85%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	0.05%
Other Expenses	rr_OtherExpensesOverAssets	0.47%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.38%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	0.11%	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.27%
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	1,000,000
1 Year	rr_ExpenseExampleYear01	339
3 Years	rr_ExpenseExampleYear03	633
5 Years	rr_ExpenseExampleYear05	848
10 Years	rr_ExpenseExampleYear10	1,741
1 Year	rr_ExpenseExampleNoRedemptionYear01	239
3 Years	rr_ExpenseExampleNoRedemptionYear03	533
5 Years	rr_ExpenseExampleNoRedemptionYear05	848
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,741
1 Year	rr_AverageAnnualReturnYear01	8.47%
5 Years	rr_AverageAnnualReturnYear05	7.92%
10 Years	rr_AverageAnnualReturnYear10	8.66%
Federated Strategic Income Fund | IS
Risk/Return:	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	rr_MaximumDeferredSalesChargeOverOther	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther	none
Redemption Fee (as a percentage of amount redeemed, if applicable)	rr_RedemptionFeeOverRedemption	none
Exchange Fee	rr_ExchangeFeeOverRedemption	none
Management Fee	rr_ManagementFeesOverAssets	0.85%
Distribution (12b-1) Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.22%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.08%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	0.06%	[1]
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.02%
1 Year	rr_ExpenseExampleYear01	110
3 Years	rr_ExpenseExampleYear03	343
5 Years	rr_ExpenseExampleYear05	595
10 Years	rr_ExpenseExampleYear10	1,317
1 Year	rr_ExpenseExampleNoRedemptionYear01	110
3 Years	rr_ExpenseExampleNoRedemptionYear03	343
5 Years	rr_ExpenseExampleNoRedemptionYear05	595
10 Years	rr_ExpenseExampleNoRedemptionYear10	1,317
1 Year	rr_AverageAnnualReturnYear01	10.82%
5 Years	rr_AverageAnnualReturnYear05	8.34%
10 Years	rr_AverageAnnualReturnYear10	8.87%
Federated Strategic Income Fund | Return After Taxes on Distributions | A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	3.68%
5 Years	rr_AverageAnnualReturnYear05	4.85%
10 Years	rr_AverageAnnualReturnYear10	5.93%
Federated Strategic Income Fund | Return After Taxes on Distributions and Sale of Fund Shares | A
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	3.59%
5 Years	rr_AverageAnnualReturnYear05	4.71%
10 Years	rr_AverageAnnualReturnYear10	5.72%
Federated Strategic Income Fund | Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	4.22%	[2]
5 Years	rr_AverageAnnualReturnYear05	5.95%	[2]
10 Years	rr_AverageAnnualReturnYear10	5.18%	[2]
Federated Strategic Income Fund | Barclays U.S. Government/Credit Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	4.82%	[3]
5 Years	rr_AverageAnnualReturnYear05	6.06%	[3]
10 Years	rr_AverageAnnualReturnYear10	5.25%	[3]
Federated Strategic Income Fund | Blended Index (reflects no deduction for fees, expenses or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	11.53%	[4]
5 Years	rr_AverageAnnualReturnYear05	8.73%	[4]
10 Years	rr_AverageAnnualReturnYear10	9.08%	[4]
Federated Strategic Income Fund | Lipper Multi-Sector Income Funds Average
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	11.21%	[5]
5 Years	rr_AverageAnnualReturnYear05	7.02%	[5]
10 Years	rr_AverageAnnualReturnYear10	7.39%	[5]

[1] The Adviser and its affiliates have voluntarily agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses (excluding Acquired Fund Fees and Expenses and expenses allocated from affiliated partnerships) paid by the Fund's A, B, C, F and IS classes (after the voluntary waivers and/or reimbursements) will not exceed 1.26%, 2.01%, 2.01%, 1.26% and 1.01%, (the "Fee Limit"), respectively, up to but not including the later of (the "Termination Date"): (a) February 1, 2014; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Directors.

[2] The Fund's investment adviser has elected to change the Fund's broad-based securities market index to the "Barclays U.S. Aggregate Bond Index" (BAB) from the "Barclays U.S. Government/Credit Index" (BGCI). The BAB is better aligned with the Fund's sector allocations. The BAB covers the investment-grade, U.S. dollar-denominated, fixed-rate taxable bond market, including Treasuries, government-related and corporate securities, agency mortgage pass-through securities, asset-backed securities and commercial mortgage-backed securities.

[3] Barclays Capital changed the name of the BGCI Index from " Barclays Capital U.S. Government/Credit Index" to "Barclays U.S. Government/Credit Index." The Barclays U.S. Government/Credit Index is a broad based market Index.

[4] Barclays changed the name of the BEMB, BYH2%ICI and the BMB from "Barclays Capital Emerging Market Bond Index" to "Barclays Emerging Market Bond Index," "Barclays Capital U.S. Corporate High Yield 2% Issuer Capped Index" to "Barclays U.S. Corporate High Yield 2% Issuer Capped Index" and the "Barclays Capital Mortgage-Backed Securities Index" to " Barclays Mortgage-Backed Securities Index." The Blended Index is a blend of indexes comprised of 25% Barclays Emerging Market Bond Index/40% Barclays U.S. Corporate High Yield 2% Issuer Capped Index/25% Barclays Mortgage-Backed Securities Index/10% JPMorgan Non-Dollar.

[5] Lipper figures represent the average of the total returns reported by all mutual funds designated by Lipper, Inc. as falling into the respective category indicated. They do not reflect sales charges.