485BPOS

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 18, 2018
 
1933 Act No. 333-74295
1940 Act No. 811-09253

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549

FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [X]
Pre-Effective Amendment No. [ ]
Post-Effective Amendment No. 564 [X]
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [X]
Pre-Effective Amendment No. [ ]
Post-Effective Amendment No. 565 [X]

WELLS FARGO FUNDS TRUST
(Exact Name of Registrant as Specified in Charter)

525 Market Street
San Francisco, California 94105
(Address of Principal Executive Offices)
(800) 222-8222
(Registrant's Telephone Number)

C. David Messman
Wells Fargo Funds Management, LLC
525 Market Street, 12th Floor
San Francisco, California 94105
(Name and Address of Agent for Service)

With a copy to:

Marco E. Adelfio, Esq.
Goodwin Procter LLP
901 New York Avenue, N.W.
Washington, D.C. 20001

It is proposed that this filing will become effective: (check appropriate box)
X	immediately upon filing pursuant to paragraph (b)
	on [date] pursuant to paragraph (b)
	60 days after filing pursuant to paragraph (a)(i)
	on [date] pursuant to paragraph (a)(i)
	75 days after filing pursuant to paragraph (a)(ii)
	on [date] pursuant to paragraph (a)(ii) 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 certifies that it meets all of the requirements for effectiveness of this Amendment to the Registration Statement on Form N-1A, 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, thereto duly authorized in the City of San Francisco, State of California on the 18th day of January, 2018.

WELLS FARGO FUNDS TRUST

By: /s/ C. David Messman
-----------------------------
C. David Messman
Secretary

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 564 to its Registration Statement on Form N-1A has been signed below by the following persons in the capacities and on the date indicated:

/s/ Peter G. Gordon Peter G. Gordon* Trustee	/s/ Isaiah Harris, Jr. Isaiah Harris, Jr.* Trustee	/s/ Judith M. Johnson Judith M. Johnson* Trustee
/s/ David F. Larcker David F. Larcker* Trustee	/s/ Olivia S. Mitchell Olivia S. Mitchell* Trustee	/s/ Timothy J. Penny Timothy J. Penny* Trustee
/s/ Jane A. Freeman     Jane A. Freeman*     Trustee	/s/ Michael S. Scofield Michael S. Scofield* Trustee	/s/ William R. Ebsworth William R. Ebsworth* Trustee
/s/ Andrew Owen Andrew Owen* President (Principal Executive Officer)	/s/ Nancy Wiser Nancy Wiser* Treasurer (Principal Financial Officer)

*By: /s/ C. David Messman
C. David Messman
January 18, 2018

Exhibit No.	Exhibits
Ex-101.INS	XBRL Instance Document
Ex-101.SCH	XBRL Taxonomy Extension Schema Document
Ex-101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
Ex-101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
Ex-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

XML

Label	Element	Value
Prospectus:	rr_ProspectusTable
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Aug. 31, 2017
Registrant Name	dei_EntityRegistrantName	WELLS FARGO FUNDS TRUST
Central Index Key	dei_EntityCentralIndexKey	0001081400
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Dec. 26, 2017
Document Effective Date	dei_DocumentEffectiveDate	Jan. 01, 2018
Prospectus Date	rr_ProspectusDate	Jan. 01, 2018

XML

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Adjustable Rate Government Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	2.00%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - ­ - (Wells Fargo Adjustable Rate Government Fund)		Class A	Class C
Management Fees		0.35%	0.35%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.45%	0.45%
Total Annual Fund Operating Expenses		0.80%	1.55%
Fee Waivers		(0.06%)	(0.06%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.74%	1.49%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Adjustable Rate Government Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	274	444	630	1,165
Class C	252	484	839	1,840

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Adjustable Rate Government Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	152	484	839	1,840

Portfolio Turnover

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 2% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.01%
Lowest Quarter: 4th Quarter 2008	-2.80%
Year-to-date total return as of 9/30/2017 is +0.14%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[1]

Average Annual Total Returns - (Wells Fargo Adjustable Rate Government Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Jun. 30, 2000	(1.50%)	0.18%	1.51%
Class A | (after taxes on distributions)	Jun. 30, 2000	(1.75%)	(0.10%)	0.80%
Class A | (after taxes on distributions and the sale of Fund Shares)	Jun. 30, 2000	(0.85%)	0.02%	0.90%
Class C	Jun. 30, 2000	(1.29%)	(0.16%)	0.96%
Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)		0.67%	0.28%	1.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund)

Investment Objective

The Fund seeks total return, consisting of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Core Plus Bond Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	4.50%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - ­ - (Wells Fargo Core Plus Bond Fund)		Class A	Class C
Management Fees		0.45%	0.45%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.48%	0.48%
Acquired Fund Fees and Expenses		0.01%	0.01%
Total Annual Fund Operating Expenses		0.94%	1.69%
Fee Waivers		(0.20%)	(0.20%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.74%	1.49%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Core Plus Bond Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	522	717	928	1,535
Class C	252	513	899	1,981

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Core Plus Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	152	513	899	1,981

Portfolio Turnover

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 199% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+5.53%
Lowest Quarter: 2nd Quarter 2013	-2.73%
Year-to-date total return as of 9/30/2017 is +4.71%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

Average Annual Total Returns - (Wells Fargo Core Plus Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Jul. 13, 1998	1.02%	2.25%	4.69%
Class A | (after taxes on distributions)	Jul. 13, 1998	(0.18%)	1.16%	3.35%
Class A | (after taxes on distributions and the sale of Fund Shares)	Jul. 13, 1998	0.59%	1.31%	3.14%
Class C	Jul. 13, 1998	3.90%	2.43%	4.38%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)		2.65%	2.23%	4.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund)

Investment Objective

The Fund seeks current income.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Government Securities Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	4.50%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - ­ - (Wells Fargo Government Securities Fund)		Class A	Class C
Management Fees		0.43%	0.43%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.44%	0.44%
Total Annual Fund Operating Expenses		0.87%	1.62%
Fee Waivers		(0.02%)	(0.02%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.85%	1.60%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Government Securities Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	533	713	909	1,473
Class C	263	509	879	1,920

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Government Securities Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	163	509	879	1,920

Portfolio Turnover

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 299% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 4th Quarter 2008	+4.44%
Lowest Quarter: 4th Quarter 2016	-3.12%
Year-to-date total return as of 9/30/2017 is +2.00%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[3]

Average Annual Total Returns - (Wells Fargo Government Securities Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Aug. 31, 1999	(3.53%)	0.33%	3.18%
Class A | (after taxes on distributions)	Aug. 31, 1999	(4.86%)	(0.39%)	2.06%
Class A | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	(1.85%)	none	2.06%
Class C	Dec. 26, 2002	(0.74%)	0.50%	2.88%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)		1.36%	1.62%	3.99%
Bloomberg Barclays Intermediate U.S. Government Index (reflects no deduction for fees, expenses, or taxes)		1.05%	1.04%	3.42%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo High Yield Bond Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	4.50%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - ­ - (Wells Fargo High Yield Bond Fund)		Class A	Class C
Management Fees		0.55%	0.55%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.47%	0.47%
Total Annual Fund Operating Expenses		1.02%	1.77%
Fee Waivers		(0.09%)	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.93%	1.68%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo High Yield Bond Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	541	752	980	1,634
Class C	271	548	951	2,076

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	171	548	951	2,076

Portfolio Turnover

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 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 2nd Quarter 2009	+20.52%
Lowest Quarter: 4th Quarter 2008	-17.04%
Year-to-date total return as of 9/30/2017 is +6.71%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[4]

Average Annual Total Returns - (Wells Fargo High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Jan. 20, 1998	7.63%	5.47%	5.92%
Class A | (after taxes on distributions)	Jan. 20, 1998	5.65%	3.50%	3.46%
Class A | (after taxes on distributions and the sale of Fund Shares)	Jan. 20, 1998	4.27%	3.33%	3.49%
Class C	Jan. 21, 1998	10.72%	5.64%	5.63%
ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)		17.49%	7.35%	7.45%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund)

Investment Objective

The Fund seeks to provide current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Short Duration Government Bond Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	2.00%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - ­ - (Wells Fargo Short Duration Government Bond Fund)		Class A	Class C
Management Fees		0.35%	0.35%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.44%	0.44%
Total Annual Fund Operating Expenses		0.79%	1.54%
Fee Waivers		(0.01%)	(0.01%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.78%	1.53%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Short Duration Government Bond Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	278	446	629	1,157
Class C	256	485	838	1,834

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Short Duration Government Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	156	485	838	1,834

Portfolio Turnover

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 348% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 2nd Quarter 2013	-0.56%
Year-to-date total return as of 9/30/2017 is +0.65%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

Average Annual Total Returns - (Wells Fargo Short Duration Government Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Mar. 11, 1996	(1.17%)	0.22%	2.30%
Class A | (after taxes on distributions)	Mar. 11, 1996	(1.83%)	(0.40%)	1.39%
Class A | (after taxes on distributions and the sale of Fund Shares)	Mar. 11, 1996	(0.66%)	(0.09%)	1.43%
Class C	May 31, 2002	(0.90%)	(0.14%)	1.74%
Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)		0.87%	0.59%	2.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Short-Term Bond Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	2.00%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - ­ - (Wells Fargo Short-Term Bond Fund)		Class A	Class C
Management Fees		0.35%	0.35%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.46%	0.46%
Acquired Fund Fees and Expenses		0.01%	0.01%
Total Annual Fund Operating Expenses		0.82%	1.57%
Fee Waivers		(0.09%)	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.73%	1.48%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Short-Term Bond Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	273	448	637	1,185
Class C	251	487	847	1,860

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Short-Term Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	151	487	847	1,860

Portfolio Turnover

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 50% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in debt securities. We may invest in a variety of debt securities, including corporate, mortgage- and asset-backed securities, bank loans and U.S. Government obligations. These securities may have fixed, floating or variable rates. We invest in both investment-grade and below investment-grade debt securities (often called "high yield securities" or "junk bonds") and may also invest in U.S. dollar-denominated debt securities of foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to determine the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+3.68%
Lowest Quarter: 3rd Quarter 2008	-1.11%
Year-to-date total return as of 9/30/2017 is +1.28%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[5]

Average Annual Total Returns - (Wells Fargo Short-Term Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Aug. 31, 1999	(0.12%)	1.02%	2.44%
Class A | (after taxes on distributions)	Aug. 31, 1999	(0.69%)	0.48%	1.57%
Class A | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	(0.07%)	0.55%	1.54%
Class C	Mar. 31, 2008	0.05%	0.65%	1.85%
Bloomberg Barclays U.S. 1-3 Year Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)		1.28%	0.92%	2.44%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Short-Term High Yield Bond Fund)	Class A		Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	3.00%		none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	[1]	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - ­ - (Wells Fargo Short-Term High Yield Bond Fund)		Class A	Class C
Management Fees		0.48%	0.48%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.44%	0.44%
Acquired Fund Fees and Expenses		0.01%	0.01%
Total Annual Fund Operating Expenses		0.93%	1.68%
Fee Waivers		(0.11%)	(0.11%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.82%	1.57%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Short-Term High Yield Bond Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	381	577	789	1,399
Class C	260	519	902	1,978

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Short-Term High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	160	519	902	1,978

Portfolio Turnover

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 35% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +1.87%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[6]

Average Annual Total Returns - (Wells Fargo Short-Term High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Feb. 29, 2000	1.27%	2.75%	3.58%
Class A | (after taxes on distributions)	Feb. 29, 2000	(0.01%)	1.33%	1.92%
Class A | (after taxes on distributions and the sale of Fund Shares)	Feb. 29, 2000	0.71%	1.48%	2.08%
Class C	Mar. 31, 2008	2.62%	2.61%	3.12%
ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Years Index (reflects no deduction for fees, expenses, or taxes)		10.39%	6.37%	6.59%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - ­ - (Wells Fargo Ultra Short-Term Income Fund)	Class A	Class C
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	2.00%	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none	1.00%

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - ­ - (Wells Fargo Ultra Short-Term Income Fund)		Class A	Class C
Management Fees		0.34%	0.34%
Distribution (12b-1) Fees		none	0.75%
Other Expenses		0.45%	0.45%
Acquired Fund Fees and Expenses		0.01%	0.01%
Total Annual Fund Operating Expenses		0.80%	1.55%
Fee Waivers		(0.09%)	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers	[1]	0.71%	1.46%

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Assuming Redemption at End of Period

Expense Example - (Wells Fargo Ultra Short-Term Income Fund) - ­ - USD ($)	1 Year	3 Years	5 Years	10 Years
Class A	271	442	627	1,162
Class C	249	481	836	1,838

Assuming No Redemption

Expense Example, No Redemption - (Wells Fargo Ultra Short-Term Income Fund)	1 Year	3 Years	5 Years	10 Years
Class C | ­ | USD ($)	149	481	836	1,838

Portfolio Turnover

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 56% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+3.84%
Lowest Quarter: 4th Quarter 2008	-4.74%
Year-to-date total return as of 9/30/2017 is +0.96%

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[7]

Average Annual Total Returns - (Wells Fargo Ultra Short-Term Income Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class A	Aug. 31, 1999	(0.65%)	0.38%	1.05%
Class A | (after taxes on distributions)	Aug. 31, 1999	(1.09%)	0.05%	0.33%
Class A | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	(0.37%)	0.15%	0.54%
Class C	Jul. 18, 2008	(0.38%)	0.04%	0.50%
Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)		0.80%	0.37%	1.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

[1] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.73% for Class A and 1.48% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.72% for Class A and 1.47% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.50% if redeemed within 12 months from the date of purchase.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.81% for Class A and 1.56% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.70% for Class A and 1.45% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[2] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[3] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A.

[4] Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[5] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

[6] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

[7] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

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(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Adjustable Rate Government Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Adjustable Rate Government Fund)	Administrator Class ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.39%
Total Annual Fund Operating Expenses	0.74%
Fee Waivers	(0.14%)
Total Annual Fund Operating Expenses After Fee Waivers	0.60%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Adjustable Rate Government Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	61	222	398	905

Portfolio Turnover

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 2% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.05%
Lowest Quarter: 4th Quarter 2008	-2.76%
Year-to-date total return as of 9/30/2017 is +0.24%

Average Annual Total Returns for the periods ended 12/31/2016

^[1]

Average Annual Total Returns - (Wells Fargo Adjustable Rate Government Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Jul. 30, 2010	0.60%	0.73%	1.86%
Administrator Class | (after taxes on distributions)	Jul. 30, 2010	0.30%	0.40%	1.08%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Jul. 30, 2010	0.34%	0.42%	1.14%
Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)		0.67%	0.28%	1.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund)

Investment Objective

The Fund seeks total return, consisting of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Core Plus Bond Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo Core Plus Bond Fund)	Administrator Class ­
Management Fees	0.45%
Distribution (12b-1) Fees	none
Other Expenses	0.42%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.88%
Fee Waivers	(0.25%)
Total Annual Fund Operating Expenses After Fee Waivers	0.63%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Core Plus Bond Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	64	256	463	1,061

Portfolio Turnover

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 199% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+5.57%
Lowest Quarter: 2nd Quarter 2013	-2.70%
Year-to-date total return as of 9/30/2017 is +4.79%

Average Annual Total Returns for the periods ended 12/31/2016

^[3]

Average Annual Total Returns - (Wells Fargo Core Plus Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Jul. 30, 2010	5.79%	3.33%	5.26%
Administrator Class | (after taxes on distributions)	Jul. 30, 2010	4.48%	2.18%	3.86%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Jul. 30, 2010	3.28%	2.11%	3.58%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)		2.65%	2.23%	4.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund)

Investment Objective

The Fund seeks current income.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Government Securities Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo Government Securities Fund)	Administrator Class ­
Management Fees	0.43%
Distribution (12b-1) Fees	none
Other Expenses	0.38%
Total Annual Fund Operating Expenses	0.81%
Fee Waivers	(0.17%)
Total Annual Fund Operating Expenses After Fee Waivers	0.64%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Government Securities Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	65	242	433	986

Portfolio Turnover

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 299% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 4th Quarter 2008	+4.49%
Lowest Quarter: 4th Quarter 2016	-3.07%
Year-to-date total return as of 9/30/2017 is +2.16%

Average Annual Total Returns for the periods ended 12/31/2016

^[4]

Average Annual Total Returns - (Wells Fargo Government Securities Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Apr. 08, 2005	1.23%	1.47%	3.87%
Administrator Class | (after taxes on distributions)	Apr. 08, 2005	(0.25%)	0.66%	2.66%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Apr. 08, 2005	0.85%	0.84%	2.57%
Bloomberg Barclays U.S. Aggregate ex Credit Index (reflects no deduction for fees, expenses, or taxes)		1.36%	1.62%	3.99%
Bloomberg Barclays Intermediate U.S. Government Index (reflects no deduction for fees, expenses, or taxes)		1.05%	1.04%	3.42%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo High Yield Bond Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo High Yield Bond Fund)	Administrator Class ­
Management Fees	0.55%
Distribution (12b-1) Fees	none
Other Expenses	0.41%
Total Annual Fund Operating Expenses	0.96%
Fee Waivers	(0.16%)
Total Annual Fund Operating Expenses After Fee Waivers	0.80%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	82	290	515	1,163

Portfolio Turnover

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 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 2nd Quarter 2009	+20.59%
Lowest Quarter: 4th Quarter 2008	-16.99%
Year-to-date total return as of 9/30/2017 is +6.82%

Average Annual Total Returns for the periods ended 12/31/2016

^[5]

Average Annual Total Returns - (Wells Fargo High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Apr. 14, 1998	12.39%	6.66%	6.67%
Administrator Class | (after taxes on distributions)	Apr. 14, 1998	10.24%	4.57%	4.09%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Apr. 14, 1998	6.96%	4.21%	4.04%
ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)		17.49%	7.35%	7.45%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund)

Investment Objective

The Fund seeks to provide current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short Duration Government Bond Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Short Duration Government Bond Fund)	Administrator Class ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.38%
Total Annual Fund Operating Expenses	0.73%
Fee Waivers	(0.13%)
Total Annual Fund Operating Expenses After Fee Waivers	0.60%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short Duration Government Bond Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	61	220	393	894

Portfolio Turnover

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 348% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.50%
Lowest Quarter: 4th Quarter 2016	-0.56%
Year-to-date total return as of 9/30/2017 is +0.89%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Short Duration Government Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Dec. 18, 1992	1.03%	0.80%	2.72%
Administrator Class | (after taxes on distributions)	Dec. 18, 1992	0.28%	0.09%	1.72%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Dec. 18, 1992	0.59%	0.31%	1.73%
Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)		0.87%	0.59%	2.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short-Term High Yield Bond Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Short-Term High Yield Bond Fund)	Administrator Class ­
Management Fees	0.48%
Distribution (12b-1) Fees	none
Other Expenses	0.38%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.87%
Fee Waivers	(0.21%)
Total Annual Fund Operating Expenses After Fee Waivers	0.66%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short-Term High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	67	257	462	1,053

Portfolio Turnover

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 35% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +1.99%

Average Annual Total Returns for the periods ended 12/31/2016

^[6]

Average Annual Total Returns - (Wells Fargo Short-Term High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Jul. 30, 2010	4.57%	3.54%	4.00%
Administrator Class | (after taxes on distributions)	Jul. 30, 2010	3.17%	2.04%	2.29%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Jul. 30, 2010	2.57%	2.06%	2.39%
ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Year Index (reflects no deduction for fees, expenses, or taxes)		10.39%	6.37%	6.59%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Ultra Short-Term Income Fund)	Administrator Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Ultra Short-Term Income Fund)	Administrator Class ­
Management Fees	0.34%
Distribution (12b-1) Fees	none
Other Expenses	0.39%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.74%
Fee Waivers	(0.18%)
Total Annual Fund Operating Expenses After Fee Waivers	0.56%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Ultra Short-Term Income Fund)	1 Year	3 Years	5 Years	10 Years
Administrator Class | ­ | USD ($)	57	218	394	902

Portfolio Turnover

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 56% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+3.89%
Lowest Quarter: 4th Quarter 2008	-4.61%
Year-to-date total return as of 9/30/2017 is +1.08%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Ultra Short-Term Income Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Administrator Class	Apr. 08, 2005	1.53%	0.97%	1.41%
Administrator Class | (after taxes on distributions)	Apr. 08, 2005	1.02%	0.56%	0.63%
Administrator Class | (after taxes on distributions and the sale of Fund Shares)	Apr. 08, 2005	0.86%	0.57%	0.79%
Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)		0.80%	0.37%	1.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.62% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.65% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.55% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Historical performance shown prior to the inception of the Administrator Class shares reflects the performance of the Institutional Class shares, adjusted to reflect the higher expenses applicable to the Administrator Class shares. Historical performance shown for the Administrator class of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[2] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[3] Historical performance shown for Administrator Class shares prior to their inception reflects the performance of Institutional Class shares and has been adjusted to include the higher expenses applicable to Administrator Class shares.

[4] Historical performance shown prior to the inception of the Administrator Class shares reflects the performance of the Institutional Class shares, adjusted to reflect the higher expenses applicable to the Administrator Class shares.

[5] Historical performance shown for the Administrator Class prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[6] Historical performance shown for the Administrator Class shares prior to their inception reflects the performance of the Class A shares, and includes the higher expenses applicable to Class A. If these expenses had not been included, returns would be higher.

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(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Adjustable Rate Government Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Adjustable Rate Government Fund)	Institutional Class ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.12%
Total Annual Fund Operating Expenses	0.47%
Fee Waivers	(0.01%)
Total Annual Fund Operating Expenses After Fee Waivers	0.46%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Adjustable Rate Government Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	47	150	262	590

Portfolio Turnover

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 2% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.08%
Lowest Quarter: 4th Quarter 2008	-2.74%
Year-to-date total return as of 9/30/2017 is +0.35%

Average Annual Total Returns for the periods ended 12/31/2016

^[1]

Average Annual Total Returns - (Wells Fargo Adjustable Rate Government Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Oct. 01, 1991	0.74%	0.87%	1.99%
Institutional Class | (after taxes on distributions)	Oct. 01, 1991	0.40%	0.49%	1.18%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Oct. 01, 1991	0.42%	0.50%	1.23%
Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)		0.67%	0.28%	1.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Conservative Income Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Conservative Income Fund)	Institutional Class ­
Management Fees	0.25%
Distribution (12b-1) Fees	none
Other Expenses	0.11%
Total Annual Fund Operating Expenses	0.36%
Fee Waivers	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers	0.27%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Conservative Income Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	28	107	193	447

Portfolio Turnover

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 197% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• substantially all of the Fund's net assets in high-quality, U.S. dollar-denominated short-term fixed-, floating- and variable-rate debt securities.

Under normal circumstances, we invest substantially all of the Fund's net assets in high-quality, U.S. dollar-denominated short-term fixed-, floating- and variable-rate debt securities that have received either a minimum short-term rating of at least A-1 (or its equivalent) or a minimum long-term rating of A minus (or its equivalent), by one or more Nationally Recognized Statistical Ratings Organizations, or, if unrated, that are deemed by us to be of comparable quality at the time of purchase.

Our portfolio holdings may include commercial paper, repurchase agreements, certificates of deposit, time deposits, bankers' acceptances, U.S. Government obligations, municipal securities, corporate debt securities and mortgage- and asset-backed securities. We may invest in the U.S. dollar-denominated debt securities of both domestic and foreign issuers. We may also use Treasury futures for duration and yield curve management. The Fund will not invest in auction rate securities, structured investment vehicle (SIV) structures or mortgage- or asset-backed securities primarily backed by sub-prime or Alt-A residential collateral.

While we may invest in securities with a maximum maturity, average life or demand feature of three and one quarter years, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a combination of bottom-up, security-level analysis with a top down macroeconomic view to formulate security selection, sector and credit quality positioning, and duration decisions. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions.

Our security selection process employs fundamental and quantitative techniques to identify attractive, risk-adjusted return opportunities among high-quality debt securities. Elements of this evaluation may include, among others, credit research, the measurement of volatility trends and historical yield spread relationships, and estimates of liquidity and investor demand. Our fundamental credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors.

Though the Fund's net asset value will fluctuate, the Fund's principal investment strategies are intended to manage volatility.

The Fund is not a money market fund.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Municipal Securities Risk. Municipal securities may be fully or partially backed or enhanced by the taxing authority of a local government, by the current or anticipated revenues from a specific project or specific assets, or by the credit of, or liquidity enhancement provided by, a private issuer. Various types of municipal securities are often related in such a way that political, economic or business developments affecting one obligation could affect other municipal securities held by a Fund.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2016	+0.33%
Lowest Quarter: 3rd Quarter 2015	+0.02%
Year-to-date total return as of 9/30/2017 is +1.07%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Conservative Income Fund) - ­	Inception Date of Share Class	1 Year	5 Years	Since Inception	[1]
Institutional Class	May 31, 2013	1.06%		0.58%
Institutional Class | (after taxes on distributions)	May 31, 2013	0.69%		0.33%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	May 31, 2013	0.60%		0.33%
Bloomberg Barclays 6-9 Month Treasury Bills Index (reflects no deduction for fees, expenses, or taxes)		0.49%		0.22%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund)

Investment Objective

The Fund seeks total return, consisting of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Core Plus Bond Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo Core Plus Bond Fund)	Institutional Class ­
Management Fees	0.45%
Distribution (12b-1) Fees	none
Other Expenses	0.15%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.61%
Fee Waivers	(0.20%)
Total Annual Fund Operating Expenses After Fee Waivers	0.41%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Core Plus Bond Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	42	175	320	743

Portfolio Turnover

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 199% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+5.61%
Lowest Quarter: 2nd Quarter 2013	-2.66%
Year-to-date total return as of 9/30/2017 is +4.94%

Average Annual Total Returns for the periods ended 12/31/2016

^[3]

Average Annual Total Returns - (Wells Fargo Core Plus Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Jul. 18, 2008	5.96%	3.49%	5.44%
Institutional Class | (after taxes on distributions)	Jul. 18, 2008	4.57%	2.28%	3.99%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Jul. 18, 2008	3.38%	2.21%	3.70%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)		2.65%	2.23%	4.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund)

Investment Objective

The Fund seeks current income.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Government Securities Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo Government Securities Fund)	Institutional Class ­
Management Fees	0.43%
Distribution (12b-1) Fees	none
Other Expenses	0.11%
Total Annual Fund Operating Expenses	0.54%
Fee Waivers	(0.06%)
Total Annual Fund Operating Expenses After Fee Waivers	0.48%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Government Securities Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	49	167	296	671

Portfolio Turnover

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 299% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 4th Quarter 2008	+4.55%
Lowest Quarter: 4th Quarter 2016	-3.04%
Year-to-date total return as of 9/30/2017 is +2.28%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Government Securities Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Aug. 31, 1999	1.39%	1.64%	4.05%
Institutional Class | (after taxes on distributions)	Aug. 31, 1999	(0.16%)	0.75%	2.77%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	0.94%	0.93%	2.68%
Bloomberg Barclays U.S. Aggregate ex Credit Index (reflects no deduction for fees, expenses, or taxes)		1.36%	1.62%	3.99%
Bloomberg Barclays Intermediate U.S. Government Bond Index (reflects no deduction for fees, expenses, or taxes)		1.05%	1.04%	3.42%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo High Yield Bond Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo High Yield Bond Fund)	Institutional Class ­
Management Fees	0.55%
Distribution (12b-1) Fees	none
Other Expenses	0.14%
Total Annual Fund Operating Expenses	0.69%
Fee Waivers	(0.16%)
Total Annual Fund Operating Expenses After Fee Waivers	0.53%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	54	205	368	843

Portfolio Turnover

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 20% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 2nd Quarter 2009	+20.59%
Lowest Quarter: 4th Quarter 2008	-16.99%
Year-to-date total return as of 9/30/2017 is +7.03%

Average Annual Total Returns for the periods ended 12/31/2016

^[4]

Average Annual Total Returns - (Wells Fargo High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Oct. 31, 2014	12.96%	6.72%	6.69%
Institutional Class | (after taxes on distributions)	Oct. 31, 2014	10.71%	4.60%	4.11%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Oct. 31, 2014	7.27%	4.24%	4.06%
ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)		17.49%	7.35%	7.45%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund)

Investment Objective

The Fund seeks to provide current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short Duration Government Bond Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Short Duration Government Bond Fund)	Institutional Class ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.11%
Total Annual Fund Operating Expenses	0.46%
Fee Waivers	(0.04%)
Total Annual Fund Operating Expenses After Fee Waivers	0.42%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short Duration Government Bond Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	43	144	254	575

Portfolio Turnover

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 348% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 4th Quarter 2016	-0.52%
Year-to-date total return as of 9/30/2017 is +1.03%

Average Annual Total Returns for the periods ended 12/31/2016

^[5]

Average Annual Total Returns - (Wells Fargo Short Duration Government Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Apr. 08, 2005	1.22%	1.00%	2.91%
Institutional Class | (after taxes on distributions)	Apr. 08, 2005	0.38%	0.22%	1.83%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Apr. 08, 2005	0.69%	0.43%	1.84%
Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)		0.87%	0.59%	2.18%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short-Term Bond Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[2]

Annual Fund Operating Expenses - (Wells Fargo Short-Term Bond Fund)	Institutional Class ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.13%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.49%
Fee Waivers	(0.03%)
Total Annual Fund Operating Expenses After Fee Waivers	0.46%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short-Term Bond Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	47	154	271	613

Portfolio Turnover

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 50% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in debt securities. We may invest in a variety of debt securities, including corporate, mortgage- and asset-backed securities, bank loans and U.S. Government obligations. These securities may have fixed, floating or variable rates. We invest in both investment-grade and below investment-grade debt securities (often called "high yield securities" or "junk bonds") and may also invest in U.S. dollar-denominated debt securities of foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to determine the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+3.76%
Lowest Quarter: 3rd Quarter 2008	-1.03%
Year-to-date total return as of 9/30/2017 is +1.46%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Short-Term Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Aug. 31, 1999	2.17%	1.72%	2.95%
Institutional Class | (after taxes on distributions)	Aug. 31, 1999	1.47%	1.05%	1.95%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	1.22%	1.03%	1.89%
Bloomberg Barclays U.S. 1-3 Year Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)		1.28%	0.92%	2.44%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund)

Investment Objective

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short-Term High Yield Bond Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Short-Term High Yield Bond Fund)	Institutional Class ­
Management Fees	0.48%
Distribution (12b-1) Fees	none
Other Expenses	0.11%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.60%
Fee Waivers	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers	0.51%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short-Term High Yield Bond Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	52	183	326	741

Portfolio Turnover

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 35% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +2.11%

Average Annual Total Returns for the periods ended 12/31/2016

^[6]

Average Annual Total Returns - (Wells Fargo Short-Term High Yield Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Nov. 30, 2012	4.86%	3.64%	4.05%
Institutional Class | (after taxes on distributions)	Nov. 30, 2012	3.39%	2.08%	2.30%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Nov. 30, 2012	2.73%	2.11%	2.41%
ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Year Index (reflects no deduction for fees, expenses, or taxes)		10.39%	6.37%	6.59%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund)

Investment Objective

The Fund seeks current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Ultra Short-Term Income Fund)	Institutional Class ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Ultra Short-Term Income Fund)	Institutional Class ­
Management Fees	0.34%
Distribution (12b-1) Fees	none
Other Expenses	0.12%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.47%
Fee Waivers	(0.11%)
Total Annual Fund Operating Expenses After Fee Waivers	0.36%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Ultra Short-Term Income Fund)	1 Year	3 Years	5 Years	10 Years
Institutional Class | ­ | USD ($)	37	140	252	581

Portfolio Turnover

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 56% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+3.93%
Lowest Quarter: 4th Quarter 2008	-4.66%
Year-to-date total return as of 9/30/2017 is +1.23%

Average Annual Total Returns for the periods ended 12/31/2016

Average Annual Total Returns - (Wells Fargo Ultra Short-Term Income Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Institutional Class	Aug. 31, 1999	1.73%	1.17%	1.62%
Institutional Class | (after taxes on distributions)	Aug. 31, 1999	1.13%	0.68%	0.76%
Institutional Class | (after taxes on distributions and the sale of Fund Shares)	Aug. 31, 1999	0.98%	0.68%	0.92%
Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)		0.80%	0.37%	1.34%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Performance Since 5/31/2013

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.40% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.45% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.50% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.35% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Historical performance shown for Institutional Class prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[2] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[3] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Class A shares, and is not adjusted to reflect the Institutional Class expenses. If these expenses had been included, returns for the Institutional Class would be higher.

[4] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and is not adjusted to reflect the Institutional Class expenses. If these expenses had been included, returns for the Institutional Class would be higher. Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[5] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and includes the higher expenses applicable to the Administrator Class shares. If these expenses had not been included, returns would be higher.

[6] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and includes the higher expenses applicable to the Administrator Class shares. If these expenses had not been included, returns would be higher.

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(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund)

Investment Objective

The Fund seeks total return, consisting of current income and capital appreciation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Core Plus Bond Fund)	Class R6 ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Core Plus Bond Fund)	Class R6 ­
Management Fees	0.45%
Distribution (12b-1) Fees	none
Other Expenses	0.10%
Acquired Fund Fees and Expenses	0.01%
Total Annual Fund Operating Expenses	0.56%
Fee Waivers	(0.20%)
Total Annual Fund Operating Expenses After Fee Waivers	0.36%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Core Plus Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class R6 | ­ | USD ($)	37	159	293	682

Portfolio Turnover

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 199% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 3rd Quarter 2009	+5.61%
Lowest Quarter: 2nd Quarter 2013	-2.66%
Year-to-date total return as of 9/30/2017 is +5.04%

Average Annual Total Returns for the periods ended 12/31/2016

^[1]

Average Annual Total Returns - (Wells Fargo Core Plus Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class R6	Oct. 31, 2016	5.97%	3.50%	5.44%
Class R6 | (after taxes on distributions)	Oct. 31, 2016	4.57%	2.28%	3.99%
Class R6 | (after taxes on distributions and the sale of Fund Shares)	Oct. 31, 2016	3.38%	2.21%	3.70%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)		2.65%	2.23%	4.34%

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund)

Investment Objective

The Fund seeks to provide current income consistent with capital preservation.

Fees and Expenses

These tables are intended to help you understand the various costs and expenses you will pay if you buy and hold shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees - (Wells Fargo Short Duration Government Bond Fund)	Class R6 ­
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load) (as a percentage of offering price)	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - (Wells Fargo Short Duration Government Bond Fund)	Class R6 ­
Management Fees	0.35%
Distribution (12b-1) Fees	none
Other Expenses	0.06%
Total Annual Fund Operating Expenses	0.41%
Fee Waivers	(0.04%)
Total Annual Fund Operating Expenses After Fee Waivers	0.37%	[1]

Example of Expenses

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - (Wells Fargo Short Duration Government Bond Fund)	1 Year	3 Years	5 Years	10 Years
Class R6 | ­ | USD ($)	38	128	226	514

Portfolio Turnover

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 348% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Principal Investment Risks

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Performance

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 2nd Quarter 2013	-0.45%
Year-to-date total return as of 9/30/2017 is +1.07%

Average Annual Total Returns for the periods ended 12/31/2016

^[2]

Average Annual Total Returns - (Wells Fargo Short Duration Government Bond Fund) - ­	Inception Date of Share Class	1 Year	5 Years	10 Years
Class R6	Nov. 30, 2012	1.27%	1.08%	2.95%
Class R6 | (after taxes on distributions)	Nov. 30, 2012	0.41%	0.28%	1.86%
Class R6 | (after taxes on distributions and the sale of Fund Shares)	Nov. 30, 2012	0.72%	0.48%	1.87%
Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)		0.87%	0.59%	2.18%

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.35% for Class R6. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[1] Historical performance shown for Class R6 shares prior to their inception reflects the performance of Institutional Class shares and includes the higher expenses applicable to Institutional Class shares. If these expenses had not been included, returns would be higher.

[2] Historical performance shown for Class R6 shares prior to their inception reflects the performance of the Institutional Class shares, and includes the higher expenses applicable to the Institutional Class shares. If theses expenses had not been included, returns would be higher.

XML

Label

Element

Value

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 2% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

2.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.01%
Lowest Quarter: 4th Quarter 2008	-2.80%
Year-to-date total return as of 9/30/2017 is +0.14%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[1]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund) | Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.67%

5 Years

rr_AverageAnnualReturnYear05

0.28%

10 Years

rr_AverageAnnualReturnYear10

1.18%

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund) | Class A

Prospectus:

rr_ProspectusTable

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.00%

Maximum deferred sales charge (load) (as a percentage of offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[2]

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.45%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.80%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.74%

^[3]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 274

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

444

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

630

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,165

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (returns do not reflect sales charges and would be lower if they did)

^[1]

Annual Return 2007

rr_AnnualReturn2007

4.48%

Annual Return 2008

rr_AnnualReturn2008

(1.21%)

Annual Return 2009

rr_AnnualReturn2009

6.60%

Annual Return 2010

rr_AnnualReturn2010

2.76%

Annual Return 2011

rr_AnnualReturn2011

1.79%

Annual Return 2012

rr_AnnualReturn2012

1.81%

Annual Return 2013

rr_AnnualReturn2013

0.33%

Annual Return 2014

rr_AnnualReturn2014

0.69%

Annual Return 2015

rr_AnnualReturn2015

(0.30%)

Annual Return 2016

rr_AnnualReturn2016

0.46%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.14%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.14%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.01%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.80%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

(1.50%)

5 Years

rr_AverageAnnualReturnYear05

0.18%

10 Years

rr_AverageAnnualReturnYear10

1.51%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jun. 30, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(1.75%)

5 Years

rr_AverageAnnualReturnYear05

(0.10%)

10 Years

rr_AverageAnnualReturnYear10

0.80%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jun. 30, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.85%)

5 Years

rr_AverageAnnualReturnYear05

0.02%

10 Years

rr_AverageAnnualReturnYear10

0.90%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jun. 30, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Adjustable Rate Government Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.45%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.55%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.49%

^[3]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 252

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

484

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

839

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,840

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

152

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

484

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

839

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,840

1 Year

rr_AverageAnnualReturnYear01

(1.29%)

5 Years

rr_AverageAnnualReturnYear05

(0.16%)

10 Years

rr_AverageAnnualReturnYear10

0.96%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jun. 30, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[4]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 199% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

199.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+5.53%
Lowest Quarter: 2nd Quarter 2013	-2.73%
Year-to-date total return as of 9/30/2017 is +4.71%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund) | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.65%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

4.34%

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund) | Class A

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[5]

Management Fees

rr_ManagementFeesOverAssets

0.45%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.48%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.94%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.20%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.74%

^[6]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 522

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

717

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

928

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,535

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

Annual Return 2007

rr_AnnualReturn2007

6.24%

Annual Return 2008

rr_AnnualReturn2008

2.29%

Annual Return 2009

rr_AnnualReturn2009

11.87%

Annual Return 2010

rr_AnnualReturn2010

7.98%

Annual Return 2011

rr_AnnualReturn2011

7.77%

Annual Return 2012

rr_AnnualReturn2012

5.59%

Annual Return 2013

rr_AnnualReturn2013

(1.52%)

Annual Return 2014

rr_AnnualReturn2014

6.47%

Annual Return 2015

rr_AnnualReturn2015

(0.05%)

Annual Return 2016

rr_AnnualReturn2016

5.75%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +4.71%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

4.71%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.53%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.73%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

1.02%

5 Years

rr_AverageAnnualReturnYear05

2.25%

10 Years

rr_AverageAnnualReturnYear10

4.69%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 13, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.18%)

5 Years

rr_AverageAnnualReturnYear05

1.16%

10 Years

rr_AverageAnnualReturnYear10

3.35%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 13, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.59%

5 Years

rr_AverageAnnualReturnYear05

1.31%

10 Years

rr_AverageAnnualReturnYear10

3.14%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 13, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo Core Plus Bond Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.45%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.48%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.69%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.20%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.49%

^[6]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 252

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

513

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

899

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,981

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

152

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

513

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

899

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,981

1 Year

rr_AverageAnnualReturnYear01

3.90%

5 Years

rr_AverageAnnualReturnYear05

2.43%

10 Years

rr_AverageAnnualReturnYear10

4.38%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 13, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[4]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 299% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

299.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 4th Quarter 2008	+4.44%
Lowest Quarter: 4th Quarter 2016	-3.12%
Year-to-date total return as of 9/30/2017 is +2.00%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[7]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.36%

5 Years

rr_AverageAnnualReturnYear05

1.62%

10 Years

rr_AverageAnnualReturnYear10

3.99%

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays Intermediate U.S. Government Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.05%

5 Years

rr_AverageAnnualReturnYear05

1.04%

10 Years

rr_AverageAnnualReturnYear10

3.42%

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Class A

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[5]

Management Fees

rr_ManagementFeesOverAssets

0.43%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.87%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.02%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.85%

^[8]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 533

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

713

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

909

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,473

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

^[7]

Annual Return 2007

rr_AnnualReturn2007

6.98%

Annual Return 2008

rr_AnnualReturn2008

7.67%

Annual Return 2009

rr_AnnualReturn2009

3.58%

Annual Return 2010

rr_AnnualReturn2010

5.48%

Annual Return 2011

rr_AnnualReturn2011

6.92%

Annual Return 2012

rr_AnnualReturn2012

2.54%

Annual Return 2013

rr_AnnualReturn2013

(2.54%)

Annual Return 2014

rr_AnnualReturn2014

5.14%

Annual Return 2015

rr_AnnualReturn2015

0.30%

Annual Return 2016

rr_AnnualReturn2016

1.01%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +2.00%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

2.00%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 4th Quarter 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.44%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(3.12%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

1 Year

rr_AverageAnnualReturnYear01

(3.53%)

5 Years

rr_AverageAnnualReturnYear05

0.33%

10 Years

rr_AverageAnnualReturnYear10

3.18%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(4.86%)

5 Years

rr_AverageAnnualReturnYear05

(0.39%)

10 Years

rr_AverageAnnualReturnYear10

2.06%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(1.85%)

5 Years

rr_AverageAnnualReturnYear05

none

10 Years

rr_AverageAnnualReturnYear10

2.06%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Government Securities Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.43%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.62%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.02%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.60%

^[8]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 263

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

509

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

879

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,920

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

163

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

509

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

879

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,920

1 Year

rr_AverageAnnualReturnYear01

(0.74%)

5 Years

rr_AverageAnnualReturnYear05

0.50%

10 Years

rr_AverageAnnualReturnYear10

2.88%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Dec. 26, 2002

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

^[4]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 20% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

20.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 2nd Quarter 2009	+20.52%
Lowest Quarter: 4th Quarter 2008	-17.04%
Year-to-date total return as of 9/30/2017 is +6.71%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[9]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund) | ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

17.49%

5 Years

rr_AverageAnnualReturnYear05

7.35%

10 Years

rr_AverageAnnualReturnYear10

7.45%

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund) | Class A

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[5]

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.47%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.02%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.93%

^[10]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 541

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

752

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

980

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,634

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

^[9]

Annual Return 2007

rr_AnnualReturn2007

2.86%

Annual Return 2008

rr_AnnualReturn2008

(26.17%)

Annual Return 2009

rr_AnnualReturn2009

52.42%

Annual Return 2010

rr_AnnualReturn2010

13.26%

Annual Return 2011

rr_AnnualReturn2011

4.08%

Annual Return 2012

rr_AnnualReturn2012

14.11%

Annual Return 2013

rr_AnnualReturn2013

3.66%

Annual Return 2014

rr_AnnualReturn2014

4.56%

Annual Return 2015

rr_AnnualReturn2015

(1.92%)

Annual Return 2016

rr_AnnualReturn2016

12.55%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +6.71%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

6.71%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 2nd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

20.52%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(17.04%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

7.63%

5 Years

rr_AverageAnnualReturnYear05

5.47%

10 Years

rr_AverageAnnualReturnYear10

5.92%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jan. 20, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

5.65%

5 Years

rr_AverageAnnualReturnYear05

3.50%

10 Years

rr_AverageAnnualReturnYear10

3.46%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jan. 20, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

4.27%

5 Years

rr_AverageAnnualReturnYear05

3.33%

10 Years

rr_AverageAnnualReturnYear10

3.49%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jan. 20, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo High Yield Bond Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.47%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.77%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.68%

^[10]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 271

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

548

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

951

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,076

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

171

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

548

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

951

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,076

1 Year

rr_AverageAnnualReturnYear01

10.72%

5 Years

rr_AverageAnnualReturnYear05

5.64%

10 Years

rr_AverageAnnualReturnYear10

5.63%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jan. 21, 1998

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 348% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

348.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 2nd Quarter 2013	-0.56%
Year-to-date total return as of 9/30/2017 is +0.65%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.87%

5 Years

rr_AverageAnnualReturnYear05

0.59%

10 Years

rr_AverageAnnualReturnYear10

2.18%

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund) | Class A

Prospectus:

rr_ProspectusTable

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.00%

Maximum deferred sales charge (load) (as a percentage of offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[2]

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.79%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.78%

^[3]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 278

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

446

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

629

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,157

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

Annual Return 2007

rr_AnnualReturn2007

5.80%

Annual Return 2008

rr_AnnualReturn2008

3.94%

Annual Return 2009

rr_AnnualReturn2009

6.93%

Annual Return 2010

rr_AnnualReturn2010

3.40%

Annual Return 2011

rr_AnnualReturn2011

2.15%

Annual Return 2012

rr_AnnualReturn2012

1.77%

Annual Return 2013

rr_AnnualReturn2013

(0.26%)

Annual Return 2014

rr_AnnualReturn2014

0.60%

Annual Return 2015

rr_AnnualReturn2015

0.19%

Annual Return 2016

rr_AnnualReturn2016

0.85%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.65%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.65%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.54%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.56%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

(1.17%)

5 Years

rr_AverageAnnualReturnYear05

0.22%

10 Years

rr_AverageAnnualReturnYear10

2.30%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Mar. 11, 1996

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(1.83%)

5 Years

rr_AverageAnnualReturnYear05

(0.40%)

10 Years

rr_AverageAnnualReturnYear10

1.39%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Mar. 11, 1996

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.66%)

5 Years

rr_AverageAnnualReturnYear05

(0.09%)

10 Years

rr_AverageAnnualReturnYear10

1.43%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Mar. 11, 1996

(WFA Income Funds - Classes A and C) | (Wells Fargo Short Duration Government Bond Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.54%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.53%

^[3]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 256

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

485

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

838

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,834

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

156

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

485

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

838

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,834

1 Year

rr_AverageAnnualReturnYear01

(0.90%)

5 Years

rr_AverageAnnualReturnYear05

(0.14%)

10 Years

rr_AverageAnnualReturnYear10

1.74%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

May 31, 2002

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 50% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

50.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in debt securities. We may invest in a variety of debt securities, including corporate, mortgage- and asset-backed securities, bank loans and U.S. Government obligations. These securities may have fixed, floating or variable rates. We invest in both investment-grade and below investment-grade debt securities (often called "high yield securities" or "junk bonds") and may also invest in U.S. dollar-denominated debt securities of foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to determine the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+3.68%
Lowest Quarter: 3rd Quarter 2008	-1.11%
Year-to-date total return as of 9/30/2017 is +1.28%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[11]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.28%

5 Years

rr_AverageAnnualReturnYear05

0.92%

10 Years

rr_AverageAnnualReturnYear10

2.44%

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund) | Class A

Prospectus:

rr_ProspectusTable

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.00%

Maximum deferred sales charge (load) (as a percentage of offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[2]

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.46%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.82%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.73%

^[12]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 273

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

448

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

637

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,185

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

^[11]

Annual Return 2007

rr_AnnualReturn2007

4.55%

Annual Return 2008

rr_AnnualReturn2008

(0.40%)

Annual Return 2009

rr_AnnualReturn2009

9.37%

Annual Return 2010

rr_AnnualReturn2010

4.33%

Annual Return 2011

rr_AnnualReturn2011

1.82%

Annual Return 2012

rr_AnnualReturn2012

2.86%

Annual Return 2013

rr_AnnualReturn2013

0.80%

Annual Return 2014

rr_AnnualReturn2014

0.93%

Annual Return 2015

rr_AnnualReturn2015

0.63%

Annual Return 2016

rr_AnnualReturn2016

1.92%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.28%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.28%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.68%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 3rd Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(1.11%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2008

1 Year

rr_AverageAnnualReturnYear01

(0.12%)

5 Years

rr_AverageAnnualReturnYear05

1.02%

10 Years

rr_AverageAnnualReturnYear10

2.44%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.69%)

5 Years

rr_AverageAnnualReturnYear05

0.48%

10 Years

rr_AverageAnnualReturnYear10

1.57%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.07%)

5 Years

rr_AverageAnnualReturnYear05

0.55%

10 Years

rr_AverageAnnualReturnYear10

1.54%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term Bond Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.46%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.57%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.48%

^[12]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 251

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

487

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

847

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,860

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

151

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

487

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

847

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,860

1 Year

rr_AverageAnnualReturnYear01

0.05%

5 Years

rr_AverageAnnualReturnYear05

0.65%

10 Years

rr_AverageAnnualReturnYear10

1.85%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Deferred Charges [Text Block]

rr_ExpensesDeferredChargesTextBlock

Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.50% if redeemed within 12 months from the date of purchase.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 35% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

35.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +1.87%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[13]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund) | ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Years Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

10.39%

5 Years

rr_AverageAnnualReturnYear05

6.37%

10 Years

rr_AverageAnnualReturnYear10

6.59%

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund) | Class A

Prospectus:

rr_ProspectusTable

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

3.00%

Maximum deferred sales charge (load) (as a percentage of offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

^[14]

Management Fees

rr_ManagementFeesOverAssets

0.48%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.93%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.11%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.82%

^[15]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 381

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

577

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

789

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,399

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

^[13]

Annual Return 2007

rr_AnnualReturn2007

3.24%

Annual Return 2008

rr_AnnualReturn2008

(5.82%)

Annual Return 2009

rr_AnnualReturn2009

15.34%

Annual Return 2010

rr_AnnualReturn2010

7.12%

Annual Return 2011

rr_AnnualReturn2011

3.35%

Annual Return 2012

rr_AnnualReturn2012

6.49%

Annual Return 2013

rr_AnnualReturn2013

3.46%

Annual Return 2014

rr_AnnualReturn2014

0.52%

Annual Return 2015

rr_AnnualReturn2015

2.13%

Annual Return 2016

rr_AnnualReturn2016

4.40%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.87%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.87%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.75%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.69%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

1.27%

5 Years

rr_AverageAnnualReturnYear05

2.75%

10 Years

rr_AverageAnnualReturnYear10

3.58%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Feb. 29, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.01%)

5 Years

rr_AverageAnnualReturnYear05

1.33%

10 Years

rr_AverageAnnualReturnYear10

1.92%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Feb. 29, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.71%

5 Years

rr_AverageAnnualReturnYear05

1.48%

10 Years

rr_AverageAnnualReturnYear10

2.08%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Feb. 29, 2000

(WFA Income Funds - Classes A and C) | (Wells Fargo Short-Term High Yield Bond Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.48%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.44%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.68%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.11%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.57%

^[15]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 260

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

519

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

902

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,978

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

160

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

519

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

902

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,978

1 Year

rr_AverageAnnualReturnYear01

2.62%

5 Years

rr_AverageAnnualReturnYear05

2.61%

10 Years

rr_AverageAnnualReturnYear10

3.12%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Mar. 31, 2008

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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 the aggregate in specified classes of certain Wells Fargo Funds. More information about these and other discounts is available from your financial professional and in "Share Class Features" and "Reductions and Waivers of Sales Charges" on pages 52 and 54 of the Prospectus and "Additional Purchase and Redemption Information" on page 71 of the Statement of Additional Information. Investors who purchase through certain intermediaries may be subject to different sales charge discounts than those outlined shares in these sections. Please see Appendix A on page 74 for further information.

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the aggregate in specified classes of certain Wells Fargo Funds.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Assuming Redemption at End of Period

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

rr_ExpenseExampleNoRedemptionByYearCaption

Assuming No Redemption

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 56% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

56.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Does Not Reflect Sales Loads [Text]

rr_BarChartDoesNotReflectSalesLoads

Returns do not reflect sales charges and would be lower if they did

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+3.84%
Lowest Quarter: 4th Quarter 2008	-4.74%
Year-to-date total return as of 9/30/2017 is +0.96%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016 (returns reflect applicable sales charges)

^[16]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts. After-tax returns are shown for only one class of shares. After-tax returns for any other class will vary.

Performance Table Does Reflect Sales Loads

rr_PerformanceTableDoesReflectSalesLoads

returns reflect applicable sales charges

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax returns are shown for only one class of shares.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund) | Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.80%

5 Years

rr_AverageAnnualReturnYear05

0.37%

10 Years

rr_AverageAnnualReturnYear10

1.34%

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund) | Class A

Prospectus:

rr_ProspectusTable

Maximum sales charge (load) imposed on purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.00%

Maximum deferred sales charge (load) (as a percentage of offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.34%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.45%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.80%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.71%

^[17]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 271

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

442

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

627

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,162

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class A as of 12/31 each year (Returns do not reflect sales charges and would be lower if they did)

^[16]

Annual Return 2007

rr_AnnualReturn2007

3.21%

Annual Return 2008

rr_AnnualReturn2008

(6.85%)

Annual Return 2009

rr_AnnualReturn2009

8.67%

Annual Return 2010

rr_AnnualReturn2010

3.73%

Annual Return 2011

rr_AnnualReturn2011

0.51%

Annual Return 2012

rr_AnnualReturn2012

1.79%

Annual Return 2013

rr_AnnualReturn2013

0.47%

Annual Return 2014

rr_AnnualReturn2014

0.16%

Annual Return 2015

rr_AnnualReturn2015

0.17%

Annual Return 2016

rr_AnnualReturn2016

1.37%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.96%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.96%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.84%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.74%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

(0.65%)

5 Years

rr_AverageAnnualReturnYear05

0.38%

10 Years

rr_AverageAnnualReturnYear10

1.05%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund) | Class A | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(1.09%)

5 Years

rr_AverageAnnualReturnYear05

0.05%

10 Years

rr_AverageAnnualReturnYear10

0.33%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund) | Class A | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.37%)

5 Years

rr_AverageAnnualReturnYear05

0.15%

10 Years

rr_AverageAnnualReturnYear10

0.54%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Classes A and C) | (Wells Fargo Ultra Short-Term Income Fund) | Class C

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

Management Fees

rr_ManagementFeesOverAssets

0.34%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.75%

Other Expenses

rr_OtherExpensesOverAssets

0.45%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.55%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

1.46%

^[17]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 249

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

481

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

836

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,838

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

149

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

481

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

836

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,838

1 Year

rr_AverageAnnualReturnYear01

(0.38%)

5 Years

rr_AverageAnnualReturnYear05

0.04%

10 Years

rr_AverageAnnualReturnYear10

0.50%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2008

(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 2% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

2.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.05%
Lowest Quarter: 4th Quarter 2008	-2.76%
Year-to-date total return as of 9/30/2017 is +0.24%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[18]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund) | Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.67%

5 Years

rr_AverageAnnualReturnYear05

0.28%

10 Years

rr_AverageAnnualReturnYear10

1.18%

(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.39%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.74%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.14%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.60%

^[19]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

222

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

398

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 905

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

^[18]

Annual Return 2007

rr_AnnualReturn2007

4.64%

Annual Return 2008

rr_AnnualReturn2008

(1.06%)

Annual Return 2009

rr_AnnualReturn2009

6.75%

Annual Return 2010

rr_AnnualReturn2010

2.89%

Annual Return 2011

rr_AnnualReturn2011

1.93%

Annual Return 2012

rr_AnnualReturn2012

1.95%

Annual Return 2013

rr_AnnualReturn2013

0.47%

Annual Return 2014

rr_AnnualReturn2014

0.83%

Annual Return 2015

rr_AnnualReturn2015

(0.16%)

Annual Return 2016

rr_AnnualReturn2016

0.60%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.24%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.24%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.05%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.76%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

0.60%

5 Years

rr_AverageAnnualReturnYear05

0.73%

10 Years

rr_AverageAnnualReturnYear10

1.86%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.30%

5 Years

rr_AverageAnnualReturnYear05

0.40%

10 Years

rr_AverageAnnualReturnYear10

1.08%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Adjustable Rate Government Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.34%

5 Years

rr_AverageAnnualReturnYear05

0.42%

10 Years

rr_AverageAnnualReturnYear10

1.14%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[20]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 199% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

199.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+5.57%
Lowest Quarter: 2nd Quarter 2013	-2.70%
Year-to-date total return as of 9/30/2017 is +4.79%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[21]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund) | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.65%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

4.34%

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.45%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.42%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.88%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.25%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.63%

^[22]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 64

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

256

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

463

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,061

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

^[21]

Annual Return 2007

rr_AnnualReturn2007

6.09%

Annual Return 2008

rr_AnnualReturn2008

2.30%

Annual Return 2009

rr_AnnualReturn2009

12.03%

Annual Return 2010

rr_AnnualReturn2010

8.07%

Annual Return 2011

rr_AnnualReturn2011

7.90%

Annual Return 2012

rr_AnnualReturn2012

5.76%

Annual Return 2013

rr_AnnualReturn2013

(1.38%)

Annual Return 2014

rr_AnnualReturn2014

6.60%

Annual Return 2015

rr_AnnualReturn2015

0.15%

Annual Return 2016

rr_AnnualReturn2016

5.79%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +4.79%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

4.79%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.57%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.70%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

5.79%

5 Years

rr_AverageAnnualReturnYear05

3.33%

10 Years

rr_AverageAnnualReturnYear10

5.26%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

4.48%

5 Years

rr_AverageAnnualReturnYear05

2.18%

10 Years

rr_AverageAnnualReturnYear10

3.86%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Core Plus Bond Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

3.28%

5 Years

rr_AverageAnnualReturnYear05

2.11%

10 Years

rr_AverageAnnualReturnYear10

3.58%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[20]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 299% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

299.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 4th Quarter 2008	+4.49%
Lowest Quarter: 4th Quarter 2016	-3.07%
Year-to-date total return as of 9/30/2017 is +2.16%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[23]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays U.S. Aggregate ex Credit Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.36%

5 Years

rr_AverageAnnualReturnYear05

1.62%

10 Years

rr_AverageAnnualReturnYear10

3.99%

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays Intermediate U.S. Government Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.05%

5 Years

rr_AverageAnnualReturnYear05

1.04%

10 Years

rr_AverageAnnualReturnYear10

3.42%

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.43%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.38%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.81%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.17%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.64%

^[24]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 65

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

242

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

433

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 986

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

^[23]

Annual Return 2007

rr_AnnualReturn2007

7.19%

Annual Return 2008

rr_AnnualReturn2008

7.88%

Annual Return 2009

rr_AnnualReturn2009

3.79%

Annual Return 2010

rr_AnnualReturn2010

5.67%

Annual Return 2011

rr_AnnualReturn2011

7.15%

Annual Return 2012

rr_AnnualReturn2012

2.67%

Annual Return 2013

rr_AnnualReturn2013

(2.24%)

Annual Return 2014

rr_AnnualReturn2014

5.27%

Annual Return 2015

rr_AnnualReturn2015

0.60%

Annual Return 2016

rr_AnnualReturn2016

1.23%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +2.16%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

2.16%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 4th Quarter 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.49%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(3.07%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

1 Year

rr_AverageAnnualReturnYear01

1.23%

5 Years

rr_AverageAnnualReturnYear05

1.47%

10 Years

rr_AverageAnnualReturnYear10

3.87%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.25%)

5 Years

rr_AverageAnnualReturnYear05

0.66%

10 Years

rr_AverageAnnualReturnYear10

2.66%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Administrator Class) | (Wells Fargo Government Securities Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.85%

5 Years

rr_AverageAnnualReturnYear05

0.84%

10 Years

rr_AverageAnnualReturnYear10

2.57%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[20]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 20% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

20.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 2nd Quarter 2009	+20.59%
Lowest Quarter: 4th Quarter 2008	-16.99%
Year-to-date total return as of 9/30/2017 is +6.82%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[25]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund) | ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

17.49%

5 Years

rr_AverageAnnualReturnYear05

7.35%

10 Years

rr_AverageAnnualReturnYear10

7.45%

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.41%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.96%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.16%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.80%

^[26]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 82

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

290

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

515

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,163

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

^[25]

Annual Return 2007

rr_AnnualReturn2007

3.12%

Annual Return 2008

rr_AnnualReturn2008

(25.97%)

Annual Return 2009

rr_AnnualReturn2009

52.79%

Annual Return 2010

rr_AnnualReturn2010

13.53%

Annual Return 2011

rr_AnnualReturn2011

4.30%

Annual Return 2012

rr_AnnualReturn2012

14.37%

Annual Return 2013

rr_AnnualReturn2013

3.91%

Annual Return 2014

rr_AnnualReturn2014

4.80%

Annual Return 2015

rr_AnnualReturn2015

(1.37%)

Annual Return 2016

rr_AnnualReturn2016

12.39%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +6.82%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

6.82%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 2nd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

20.59%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(16.99%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

12.39%

5 Years

rr_AverageAnnualReturnYear05

6.66%

10 Years

rr_AverageAnnualReturnYear10

6.67%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 14, 1998

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

10.24%

5 Years

rr_AverageAnnualReturnYear05

4.57%

10 Years

rr_AverageAnnualReturnYear10

4.09%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 14, 1998

(WFA Income Funds - Administrator Class) | (Wells Fargo High Yield Bond Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

6.96%

5 Years

rr_AverageAnnualReturnYear05

4.21%

10 Years

rr_AverageAnnualReturnYear10

4.04%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 14, 1998

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 348% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

348.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.50%
Lowest Quarter: 4th Quarter 2016	-0.56%
Year-to-date total return as of 9/30/2017 is +0.89%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.87%

5 Years

rr_AverageAnnualReturnYear05

0.59%

10 Years

rr_AverageAnnualReturnYear10

2.18%

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.38%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.73%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.60%

^[19]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

220

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

393

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 894

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

Annual Return 2007

rr_AnnualReturn2007

5.95%

Annual Return 2008

rr_AnnualReturn2008

4.31%

Annual Return 2009

rr_AnnualReturn2009

7.08%

Annual Return 2010

rr_AnnualReturn2010

3.75%

Annual Return 2011

rr_AnnualReturn2011

2.38%

Annual Return 2012

rr_AnnualReturn2012

2.00%

Annual Return 2013

rr_AnnualReturn2013

(0.17%)

Annual Return 2014

rr_AnnualReturn2014

0.88%

Annual Return 2015

rr_AnnualReturn2015

0.27%

Annual Return 2016

rr_AnnualReturn2016

1.03%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.89%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.89%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.50%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.56%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

1 Year

rr_AverageAnnualReturnYear01

1.03%

5 Years

rr_AverageAnnualReturnYear05

0.80%

10 Years

rr_AverageAnnualReturnYear10

2.72%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Dec. 18, 1992

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.28%

5 Years

rr_AverageAnnualReturnYear05

0.09%

10 Years

rr_AverageAnnualReturnYear10

1.72%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Dec. 18, 1992

(WFA Income Funds - Administrator Class) | (Wells Fargo Short Duration Government Bond Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.59%

5 Years

rr_AverageAnnualReturnYear05

0.31%

10 Years

rr_AverageAnnualReturnYear10

1.73%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Dec. 18, 1992

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 35% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

35.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +1.99%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[27]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund) | ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Year Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

10.39%

5 Years

rr_AverageAnnualReturnYear05

6.37%

10 Years

rr_AverageAnnualReturnYear10

6.59%

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.48%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.38%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.87%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.21%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.66%

^[28]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

257

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

462

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,053

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

^[27]

Annual Return 2007

rr_AnnualReturn2007

3.24%

Annual Return 2008

rr_AnnualReturn2008

(5.82%)

Annual Return 2009

rr_AnnualReturn2009

15.34%

Annual Return 2010

rr_AnnualReturn2010

7.02%

Annual Return 2011

rr_AnnualReturn2011

3.64%

Annual Return 2012

rr_AnnualReturn2012

6.53%

Annual Return 2013

rr_AnnualReturn2013

3.75%

Annual Return 2014

rr_AnnualReturn2014

0.68%

Annual Return 2015

rr_AnnualReturn2015

2.29%

Annual Return 2016

rr_AnnualReturn2016

4.57%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.99%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.99%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.75%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.69%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

4.57%

5 Years

rr_AverageAnnualReturnYear05

3.54%

10 Years

rr_AverageAnnualReturnYear10

4.00%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

3.17%

5 Years

rr_AverageAnnualReturnYear05

2.04%

10 Years

rr_AverageAnnualReturnYear10

2.29%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.57%

5 Years

rr_AverageAnnualReturnYear05

2.06%

10 Years

rr_AverageAnnualReturnYear10

2.39%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 30, 2010

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 56% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

56.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+3.89%
Lowest Quarter: 4th Quarter 2008	-4.61%
Year-to-date total return as of 9/30/2017 is +1.08%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund) | Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.80%

5 Years

rr_AverageAnnualReturnYear05

0.37%

10 Years

rr_AverageAnnualReturnYear10

1.34%

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund) | Administrator Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.34%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.39%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.74%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.18%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.56%

^[29]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 57

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

218

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

394

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 902

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Administrator Class as of 12/31 each year

Annual Return 2007

rr_AnnualReturn2007

3.40%

Annual Return 2008

rr_AnnualReturn2008

(6.63%)

Annual Return 2009

rr_AnnualReturn2009

8.72%

Annual Return 2010

rr_AnnualReturn2010

3.90%

Annual Return 2011

rr_AnnualReturn2011

0.54%

Annual Return 2012

rr_AnnualReturn2012

2.07%

Annual Return 2013

rr_AnnualReturn2013

0.62%

Annual Return 2014

rr_AnnualReturn2014

0.31%

Annual Return 2015

rr_AnnualReturn2015

0.32%

Annual Return 2016

rr_AnnualReturn2016

1.53%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.08%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.08%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.89%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.61%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

1.53%

5 Years

rr_AverageAnnualReturnYear05

0.97%

10 Years

rr_AverageAnnualReturnYear10

1.41%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund) | Administrator Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.02%

5 Years

rr_AverageAnnualReturnYear05

0.56%

10 Years

rr_AverageAnnualReturnYear10

0.63%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Administrator Class) | (Wells Fargo Ultra Short-Term Income Fund) | Administrator Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.86%

5 Years

rr_AverageAnnualReturnYear05

0.57%

10 Years

rr_AverageAnnualReturnYear10

0.79%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 2% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

2.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in mortgage-backed and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities, that have interest rates that reset at periodic intervals; and

• up to 20% of the Fund's total assets in obligations that pay fixed interest rates.

We invest principally in mortgage-backed securities (including collateralized mortgage obligations (CMOs)) and asset-backed securities issued or guaranteed by U.S. Government agencies or government-sponsored entities. Under normal circumstances, we expect to maintain an average credit quality rating for the portfolio equivalent to the highest rating available from a Nationally Recognized Statistical Ratings Organization (NRSRO). In the event that a NRSRO assigns U.S. sovereign debt a rating below its highest rating, we expect to maintain an average credit quality rating that is equivalent to the average rating assigned to U.S. sovereign debt. As part of our mortgage-backed securities investment strategy, we may enter into dollar roll transactions. Under normal circumstances, the dollar-weighted average reset period of the adjustable rate securities held by the Fund will not exceed one year.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, issuer selection and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include the effect of changing principal prepayments, interest rate and yield spread volatility, and the impact of changes in the level and shape of the yield curve on a security's value. We may sell a security based on how we expect these factors to affect a security's value relative to its indicated sales price as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.08%
Lowest Quarter: 4th Quarter 2008	-2.74%
Year-to-date total return as of 9/30/2017 is +0.35%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[30]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund) | Bloomberg Barclays 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.67%

5 Years

rr_AverageAnnualReturnYear05

0.28%

10 Years

rr_AverageAnnualReturnYear10

1.18%

(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.12%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.46%

^[31]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 47

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

150

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

262

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 590

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

^[30]

Annual Return 2007

rr_AnnualReturn2007

4.75%

Annual Return 2008

rr_AnnualReturn2008

(0.95%)

Annual Return 2009

rr_AnnualReturn2009

6.87%

Annual Return 2010

rr_AnnualReturn2010

3.01%

Annual Return 2011

rr_AnnualReturn2011

2.05%

Annual Return 2012

rr_AnnualReturn2012

2.06%

Annual Return 2013

rr_AnnualReturn2013

0.61%

Annual Return 2014

rr_AnnualReturn2014

0.98%

Annual Return 2015

rr_AnnualReturn2015

(0.02%)

Annual Return 2016

rr_AnnualReturn2016

0.74%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +0.35%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

0.35%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.08%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.74%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

0.74%

5 Years

rr_AverageAnnualReturnYear05

0.87%

10 Years

rr_AverageAnnualReturnYear10

1.99%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 01, 1991

(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.40%

5 Years

rr_AverageAnnualReturnYear05

0.49%

10 Years

rr_AverageAnnualReturnYear10

1.18%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 01, 1991

(WFA Income Funds - Institutional Class) | (Wells Fargo Adjustable Rate Government Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.42%

5 Years

rr_AverageAnnualReturnYear05

0.50%

10 Years

rr_AverageAnnualReturnYear10

1.23%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 01, 1991

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 197% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

197.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• substantially all of the Fund's net assets in high-quality, U.S. dollar-denominated short-term fixed-, floating- and variable-rate debt securities.

Under normal circumstances, we invest substantially all of the Fund's net assets in high-quality, U.S. dollar-denominated short-term fixed-, floating- and variable-rate debt securities that have received either a minimum short-term rating of at least A-1 (or its equivalent) or a minimum long-term rating of A minus (or its equivalent), by one or more Nationally Recognized Statistical Ratings Organizations, or, if unrated, that are deemed by us to be of comparable quality at the time of purchase.

Our portfolio holdings may include commercial paper, repurchase agreements, certificates of deposit, time deposits, bankers' acceptances, U.S. Government obligations, municipal securities, corporate debt securities and mortgage- and asset-backed securities. We may invest in the U.S. dollar-denominated debt securities of both domestic and foreign issuers. We may also use Treasury futures for duration and yield curve management. The Fund will not invest in auction rate securities, structured investment vehicle (SIV) structures or mortgage- or asset-backed securities primarily backed by sub-prime or Alt-A residential collateral.

While we may invest in securities with a maximum maturity, average life or demand feature of three and one quarter years, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a combination of bottom-up, security-level analysis with a top down macroeconomic view to formulate security selection, sector and credit quality positioning, and duration decisions. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions.

Our security selection process employs fundamental and quantitative techniques to identify attractive, risk-adjusted return opportunities among high-quality debt securities. Elements of this evaluation may include, among others, credit research, the measurement of volatility trends and historical yield spread relationships, and estimates of liquidity and investor demand. Our fundamental credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors.

Though the Fund's net asset value will fluctuate, the Fund's principal investment strategies are intended to manage volatility.

The Fund is not a money market fund.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Municipal Securities Risk. Municipal securities may be fully or partially backed or enhanced by the taxing authority of a local government, by the current or anticipated revenues from a specific project or specific assets, or by the credit of, or liquidity enhancement provided by, a private issuer. Various types of municipal securities are often related in such a way that political, economic or business developments affecting one obligation could affect other municipal securities held by a Fund.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2016	+0.33%
Lowest Quarter: 3rd Quarter 2015	+0.02%
Year-to-date total return as of 9/30/2017 is +1.07%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund) | Bloomberg Barclays 6-9 Month Treasury Bills Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.49%

5 Years

rr_AverageAnnualReturnYear05

Since Inception

rr_AverageAnnualReturnSinceInception

0.22%

^[32]

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.25%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.11%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.36%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.27%

^[31]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 28

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

107

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

193

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 447

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for the Institutional Class as of 12/31 each year

Annual Return 2014

rr_AnnualReturn2014

0.38%

Annual Return 2015

rr_AnnualReturn2015

0.28%

Annual Return 2016

rr_AnnualReturn2016

1.06%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.07%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.07%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2016

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

0.33%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2016

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 3rd Quarter 2015

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

0.02%

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2015

1 Year

rr_AverageAnnualReturnYear01

1.06%

5 Years

rr_AverageAnnualReturnYear05

Since Inception

rr_AverageAnnualReturnSinceInception

0.58%

^[32]

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

May 31, 2013

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.69%

5 Years

rr_AverageAnnualReturnYear05

Since Inception

rr_AverageAnnualReturnSinceInception

0.33%

^[32]

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

May 31, 2013

(WFA Income Funds - Institutional Class) | (Wells Fargo Conservative Income Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.60%

5 Years

rr_AverageAnnualReturnYear05

Since Inception

rr_AverageAnnualReturnSinceInception

0.33%

^[32]

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

May 31, 2013

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[33]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 199% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

199.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+5.61%
Lowest Quarter: 2nd Quarter 2013	-2.66%
Year-to-date total return as of 9/30/2017 is +4.94%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[34]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund) | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.65%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

4.34%

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.45%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.15%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.61%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.20%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.41%

^[35]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 42

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

175

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

320

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 743

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

^[34]

Annual Return 2007

rr_AnnualReturn2007

6.24%

Annual Return 2008

rr_AnnualReturn2008

2.44%

Annual Return 2009

rr_AnnualReturn2009

12.19%

Annual Return 2010

rr_AnnualReturn2010

8.31%

Annual Return 2011

rr_AnnualReturn2011

8.14%

Annual Return 2012

rr_AnnualReturn2012

5.98%

Annual Return 2013

rr_AnnualReturn2013

(1.22%)

Annual Return 2014

rr_AnnualReturn2014

6.73%

Annual Return 2015

rr_AnnualReturn2015

0.29%

Annual Return 2016

rr_AnnualReturn2016

5.96%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +4.94%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

4.94%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.61%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.66%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

5.96%

5 Years

rr_AverageAnnualReturnYear05

3.49%

10 Years

rr_AverageAnnualReturnYear10

5.44%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2008

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

4.57%

5 Years

rr_AverageAnnualReturnYear05

2.28%

10 Years

rr_AverageAnnualReturnYear10

3.99%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2008

(WFA Income Funds - Institutional Class) | (Wells Fargo Core Plus Bond Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

3.38%

5 Years

rr_AverageAnnualReturnYear05

2.21%

10 Years

rr_AverageAnnualReturnYear10

3.70%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Jul. 18, 2008

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[33]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 299% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

299.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations and repurchase agreements collateralized by U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government investment-grade debt securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. These securities may have fixed, floating or variable rates and also include mortgage-backed securities. As part of our mortgage-backed securities investment strategy, we may enter into dollar rolls. We may also use futures for duration and yield curve management.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. We may sell a security due to changes in our outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 4th Quarter 2008	+4.55%
Lowest Quarter: 4th Quarter 2016	-3.04%
Year-to-date total return as of 9/30/2017 is +2.28%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays U.S. Aggregate ex Credit Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.36%

5 Years

rr_AverageAnnualReturnYear05

1.62%

10 Years

rr_AverageAnnualReturnYear10

3.99%

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund) | Bloomberg Barclays Intermediate U.S. Government Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.05%

5 Years

rr_AverageAnnualReturnYear05

1.04%

10 Years

rr_AverageAnnualReturnYear10

3.42%

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.43%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.11%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.54%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.06%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.48%

^[36]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 49

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

167

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

296

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 671

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

Annual Return 2007

rr_AnnualReturn2007

7.43%

Annual Return 2008

rr_AnnualReturn2008

8.02%

Annual Return 2009

rr_AnnualReturn2009

4.02%

Annual Return 2010

rr_AnnualReturn2010

5.88%

Annual Return 2011

rr_AnnualReturn2011

7.33%

Annual Return 2012

rr_AnnualReturn2012

2.92%

Annual Return 2013

rr_AnnualReturn2013

(2.18%)

Annual Return 2014

rr_AnnualReturn2014

5.54%

Annual Return 2015

rr_AnnualReturn2015

0.67%

Annual Return 2016

rr_AnnualReturn2016

1.39%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +2.28%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

2.28%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 4th Quarter 2008

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.55%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2008

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(3.04%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

1 Year

rr_AverageAnnualReturnYear01

1.39%

5 Years

rr_AverageAnnualReturnYear05

1.64%

10 Years

rr_AverageAnnualReturnYear10

4.05%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

(0.16%)

5 Years

rr_AverageAnnualReturnYear05

0.75%

10 Years

rr_AverageAnnualReturnYear10

2.77%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Government Securities Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.94%

5 Years

rr_AverageAnnualReturnYear05

0.93%

10 Years

rr_AverageAnnualReturnYear10

2.68%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[33]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 20% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

20.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities that are below-investment grade; and

• up to 10% of the Fund's total assets in equity securities, including common and preferred stocks.

We invest principally in below investment-grade debt securities (often called "high yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as convertible bonds. These securities may have fixed, floating or variable rates. We may invest in below investment-grade debt securities of any credit quality. The average credit quality of the Fund's portfolio is expected to be equivalent to B or higher based on the credit ratings assigned to underlying securities by Moody's, Standard & Poor's, from other Nationally Recognized Statistical Ratings Organizations, or our credit quality assessment of the underlying securities. We do not manage the Fund's portfolio to a specific maturity or duration. We may also use futures for duration and yield curve management. We may invest up to 10% of the Fund's total assets in equity securities, including common and preferred stocks. For equity securities, we seek out dividend yielding securities of companies that we believe have strong fundamental attributes. We may invest in equity securities of companies of any size.

Securities in the Fund's portfolio may be issued by domestic or foreign issuers (including foreign governments), and may include securities of emerging markets issuers.

We start our investment process by looking at macroeconomic factors, such as the pace of economic growth, employment conditions, corporate profits, inflation rates, monetary and fiscal policy, within the context of other even broader factors, including the influence of international economic and financial conditions. This top-down, macroeconomic outlook helps us to determine the sectors and industries in which we believe the portfolio should invest, and in what proportions. We then seek those industries within this macroeconomic environment which we find attractive - industries that are either growing at or above the rate of economic growth (growth industries) or out of favor industries with potentially improving outlooks (value industries.) Within those industries, we prefer companies with sustainable competitive advantages and high barriers to entry, and we specifically seek companies with strong management teams and financial flexibility.

We regularly review the investments of the portfolio and may sell a portfolio holding when it has achieved its valuation target, there is deterioration in the underlying fundamentals of the business, or we have identified a more attractive investment opportunity.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Convertible Securities Risk. A convertible security has characteristics of both equity and debt securities and, as a result, is exposed to risks that are typically associated with both types of securities. The market value of a convertible security tends to decline as interest rates increase but also tends to reflect changes in the market price of the common stock of the issuing company.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

Growth/Value Investing Risk. Securities that exhibit growth or value characteristics tend to perform differently and shift into and out of favor with investors depending on changes in market and economic sentiment and conditions.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 2nd Quarter 2009	+20.59%
Lowest Quarter: 4th Quarter 2008	-16.99%
Year-to-date total return as of 9/30/2017 is +7.03%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[37]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund) | ICE BofA Merrill Lynch U.S. High Yield Constrained Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

17.49%

5 Years

rr_AverageAnnualReturnYear05

7.35%

10 Years

rr_AverageAnnualReturnYear10

7.45%

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.55%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.14%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.69%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.16%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.53%

^[38]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 54

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

205

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

368

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 843

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

^[37]

Annual Return 2007

rr_AnnualReturn2007

3.12%

Annual Return 2008

rr_AnnualReturn2008

(25.97%)

Annual Return 2009

rr_AnnualReturn2009

52.79%

Annual Return 2010

rr_AnnualReturn2010

13.53%

Annual Return 2011

rr_AnnualReturn2011

4.30%

Annual Return 2012

rr_AnnualReturn2012

14.37%

Annual Return 2013

rr_AnnualReturn2013

3.91%

Annual Return 2014

rr_AnnualReturn2014

5.11%

Annual Return 2015

rr_AnnualReturn2015

(1.90%)

Annual Return 2016

rr_AnnualReturn2016

12.96%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +7.03%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

7.03%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 2nd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

20.59%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(16.99%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

12.96%

5 Years

rr_AverageAnnualReturnYear05

6.72%

10 Years

rr_AverageAnnualReturnYear10

6.69%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2014

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

10.71%

5 Years

rr_AverageAnnualReturnYear05

4.60%

10 Years

rr_AverageAnnualReturnYear10

4.11%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2014

(WFA Income Funds - Institutional Class) | (Wells Fargo High Yield Bond Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

7.27%

5 Years

rr_AverageAnnualReturnYear05

4.24%

10 Years

rr_AverageAnnualReturnYear10

4.06%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2014

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 348% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

348.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 4th Quarter 2016	-0.52%
Year-to-date total return as of 9/30/2017 is +1.03%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[39]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.87%

5 Years

rr_AverageAnnualReturnYear05

0.59%

10 Years

rr_AverageAnnualReturnYear10

2.18%

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.11%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.46%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.42%

^[31]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 43

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

144

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

254

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 575

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

^[39]

Annual Return 2007

rr_AnnualReturn2007

6.25%

Annual Return 2008

rr_AnnualReturn2008

4.39%

Annual Return 2009

rr_AnnualReturn2009

7.28%

Annual Return 2010

rr_AnnualReturn2010

3.94%

Annual Return 2011

rr_AnnualReturn2011

2.46%

Annual Return 2012

rr_AnnualReturn2012

2.29%

Annual Return 2013

rr_AnnualReturn2013

0.01%

Annual Return 2014

rr_AnnualReturn2014

1.06%

Annual Return 2015

rr_AnnualReturn2015

0.45%

Annual Return 2016

rr_AnnualReturn2016

1.22%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.03%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.03%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.54%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2016

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.52%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2016

1 Year

rr_AverageAnnualReturnYear01

1.22%

5 Years

rr_AverageAnnualReturnYear05

1.00%

10 Years

rr_AverageAnnualReturnYear10

2.91%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.38%

5 Years

rr_AverageAnnualReturnYear05

0.22%

10 Years

rr_AverageAnnualReturnYear10

1.83%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Institutional Class) | (Wells Fargo Short Duration Government Bond Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.69%

5 Years

rr_AverageAnnualReturnYear05

0.43%

10 Years

rr_AverageAnnualReturnYear10

1.84%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Apr. 08, 2005

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

^[33]

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 50% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

50.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in debt securities. We may invest in a variety of debt securities, including corporate, mortgage- and asset-backed securities, bank loans and U.S. Government obligations. These securities may have fixed, floating or variable rates. We invest in both investment-grade and below investment-grade debt securities (often called "high yield securities" or "junk bonds") and may also invest in U.S. dollar-denominated debt securities of foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to determine the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+3.76%
Lowest Quarter: 3rd Quarter 2008	-1.03%
Year-to-date total return as of 9/30/2017 is +1.46%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.28%

5 Years

rr_AverageAnnualReturnYear05

0.92%

10 Years

rr_AverageAnnualReturnYear10

2.44%

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.13%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.49%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.46%

^[40]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 47

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

154

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

271

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 613

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

Annual Return 2007

rr_AnnualReturn2007

4.92%

Annual Return 2008

rr_AnnualReturn2008

(0.20%)

Annual Return 2009

rr_AnnualReturn2009

9.85%

Annual Return 2010

rr_AnnualReturn2010

4.66%

Annual Return 2011

rr_AnnualReturn2011

2.03%

Annual Return 2012

rr_AnnualReturn2012

3.19%

Annual Return 2013

rr_AnnualReturn2013

1.13%

Annual Return 2014

rr_AnnualReturn2014

1.23%

Annual Return 2015

rr_AnnualReturn2015

0.89%

Annual Return 2016

rr_AnnualReturn2016

2.17%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.46%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.46%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.76%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 3rd Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(1.03%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2008

1 Year

rr_AverageAnnualReturnYear01

2.17%

5 Years

rr_AverageAnnualReturnYear05

1.72%

10 Years

rr_AverageAnnualReturnYear10

2.95%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.47%

5 Years

rr_AverageAnnualReturnYear05

1.05%

10 Years

rr_AverageAnnualReturnYear10

1.95%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term Bond Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.22%

5 Years

rr_AverageAnnualReturnYear05

1.03%

10 Years

rr_AverageAnnualReturnYear10

1.89%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of a high level of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 35% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

35.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in below investment-grade corporate debt securities; and

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers.

We invest principally in below investment-grade debt securities (often called "high-yield" securities or "junk bonds") of corporate issuers. These include traditional corporate bonds as well as bank loans. These securities may have fixed, floating or variable rates. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated BB through CCC by Standard & Poor's or Ba through Caa by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use credit default swap agreements to reduce cash positions and to cost-effectively increase credit exposure, and futures to manage duration exposure. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be three years or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We start our investment process with a focus on bottom-up fundamental credit analysis to generate new ideas, to understand the potential risks, to select individual securities that may potentially add value from income and/or capital appreciation. Our credit research may include an assessment of an issuer's general financial condition, its competitive positioning and management strength, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 1st Quarter 2009	+4.75%
Lowest Quarter: 4th Quarter 2008	-5.69%
Year-to-date total return as of 9/30/2017 is +2.11%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[41]

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund) | ICE BofA Merrill Lynch High Yield U.S. Corporates, Cash Pay, BB Rated, 1-5 Year Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

10.39%

5 Years

rr_AverageAnnualReturnYear05

6.37%

10 Years

rr_AverageAnnualReturnYear10

6.59%

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.48%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.11%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.60%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.51%

^[42]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 52

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

183

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

326

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 741

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

^[41]

Annual Return 2007

rr_AnnualReturn2007

3.24%

Annual Return 2008

rr_AnnualReturn2008

(5.82%)

Annual Return 2009

rr_AnnualReturn2009

15.34%

Annual Return 2010

rr_AnnualReturn2010

6.98%

Annual Return 2011

rr_AnnualReturn2011

3.64%

Annual Return 2012

rr_AnnualReturn2012

6.39%

Annual Return 2013

rr_AnnualReturn2013

3.90%

Annual Return 2014

rr_AnnualReturn2014

0.82%

Annual Return 2015

rr_AnnualReturn2015

2.32%

Annual Return 2016

rr_AnnualReturn2016

4.86%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +2.11%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

2.11%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.75%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.69%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

4.86%

5 Years

rr_AverageAnnualReturnYear05

3.64%

10 Years

rr_AverageAnnualReturnYear10

4.05%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

3.39%

5 Years

rr_AverageAnnualReturnYear05

2.08%

10 Years

rr_AverageAnnualReturnYear10

2.30%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

(WFA Income Funds - Institutional Class) | (Wells Fargo Short-Term High Yield Bond Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.73%

5 Years

rr_AverageAnnualReturnYear05

2.11%

10 Years

rr_AverageAnnualReturnYear10

2.41%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 56% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

56.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in income-producing debt securities;

• up to 25% of the Fund's total assets in U.S. dollar-denominated debt securities of foreign issuers; and

• up to 15% of the Fund's total assets in below investment-grade debt securities.

We invest principally in income-producing debt securities. Our portfolio holdings may include U.S. Government obligations, corporate debt securities, bank loans and mortgage- and asset-backed debt securities. These securities may have fixed, floating or variable rates. We may invest in investment-grade and below investment-grade debt securities (often called "high-yield" securities or "junk bonds"), as well as in debt securities of both domestic and foreign issuers. As part of our below investment-grade debt securities investment strategy, we will generally invest in securities that are rated at least BB by Standard & Poor's or Ba by Moody's, or an equivalent quality rating from another Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. We may also use futures for duration and yield curve management. While we may purchase securities of any maturity, under normal circumstances, we expect the Fund's dollar-weighted average effective maturity to be one year or less. "Dollar-Weighted Average Effective Maturity" is a measure of the average time until the final payment of principal and interest is due on fixed income securities in the Fund's portfolio.

We employ a top-down, macroeconomic outlook to determine the portfolio's duration, yield curve positioning, credit quality and sector allocation. Macroeconomic factors considered may include, among others, the pace of economic growth, employment conditions, corporate profits, inflation, monetary and fiscal policy, as well as the influence of international economic and financial conditions. In combination with our top-down, macroeconomic approach, we employ a bottom-up process of fundamental securities analysis to select the specific securities for investment. Elements of this evaluation may include credit research, duration measurements, historical yield spread relationships, volatility trends, mortgage refinance rates, as well as other factors. Our credit analysis may consider an issuer's general financial condition, its competitive position and its management strategies, as well as industry characteristics and other factors. We may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+3.93%
Lowest Quarter: 4th Quarter 2008	-4.66%
Year-to-date total return as of 9/30/2017 is +1.23%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to tax-exempt investors or investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) Plans or Individual Retirement Accounts.

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund) | Bloomberg Barclays Short-Term U.S. Government/Credit Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.80%

5 Years

rr_AverageAnnualReturnYear05

0.37%

10 Years

rr_AverageAnnualReturnYear10

1.34%

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund) | Institutional Class

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.34%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.12%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.11%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.36%

^[43]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 37

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

140

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

252

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 581

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Institutional Class as of 12/31 each year

Annual Return 2007

rr_AnnualReturn2007

3.65%

Annual Return 2008

rr_AnnualReturn2008

(6.52%)

Annual Return 2009

rr_AnnualReturn2009

9.05%

Annual Return 2010

rr_AnnualReturn2010

4.10%

Annual Return 2011

rr_AnnualReturn2011

0.74%

Annual Return 2012

rr_AnnualReturn2012

2.27%

Annual Return 2013

rr_AnnualReturn2013

0.82%

Annual Return 2014

rr_AnnualReturn2014

0.51%

Annual Return 2015

rr_AnnualReturn2015

0.52%

Annual Return 2016

rr_AnnualReturn2016

1.73%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.23%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.23%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.93%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 4th Quarter 2008

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(4.66%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2008

1 Year

rr_AverageAnnualReturnYear01

1.73%

5 Years

rr_AverageAnnualReturnYear05

1.17%

10 Years

rr_AverageAnnualReturnYear10

1.62%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund) | Institutional Class | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

1.13%

5 Years

rr_AverageAnnualReturnYear05

0.68%

10 Years

rr_AverageAnnualReturnYear10

0.76%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Institutional Class) | (Wells Fargo Ultra Short-Term Income Fund) | Institutional Class | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.98%

5 Years

rr_AverageAnnualReturnYear05

0.68%

10 Years

rr_AverageAnnualReturnYear10

0.92%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Aug. 31, 1999

(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks total return, consisting of current income and capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 199% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

199.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in debt securities;

• up to 35% of the Fund's total assets in debt securities that are below investment-grade; and

• up to 25% of the Fund's total assets in debt securities of foreign issuers, including emerging markets issuers and debt securities denominated in foreign currencies.

We invest principally in debt securities, including corporate, mortgage- and asset-backed securities, bank loans, foreign sovereign debt, supranational agencies, and U.S. Government obligations. These securities may have fixed, floating or variable rates and may include debt securities of both domestic and foreign issuers. We invest in both investment-grade and below investment-grade debt securities (often called "high yield" securities or "junk bonds"), including unrated securities, as well as securities that are in default at the time of purchase.

We may invest in debt securities of foreign issuers, including emerging markets issuers, denominated in any currency. We may seek to add yield by having exposures to a variety of credits, mortgages, and higher yielding countries and currencies. We may also use futures and swap agreements to manage risk or to enhance return. We may enter into currency-related transactions through derivative instruments, including currency and cross currency forwards. The use of derivative currency transactions is intended to allow the Fund to manage, hedge or reduce a foreign currency-specific risk exposure of a portfolio security or its denominated currency or to obtain net long exposure to selected currencies for the purpose of generating income or additional returns.

While we may purchase securities of any maturity or duration, under normal circumstances, we expect to maintain an overall portfolio dollar-weighted average effective duration that is within 1 year of that of the Fund's benchmark. The Fund's benchmark, the Bloomberg Barclays U.S. Aggregate Bond Index, had a duration of 5.90 years, as of November 30, 2017. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Derivatives Risk. The use of derivatives, such as futures, options and swap agreements, can lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the portfolio manager believes it would be appropriate to do so, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

Emerging Markets Risk. Emerging market securities typically present even greater exposure to the risks described under "Foreign Investment Risk" and may be particularly sensitive to global economic conditions. Emerging market securities are also typically less liquid than securities of developed countries and could be difficult to sell, particularly during a market downturn.

Foreign Currency Contracts Risk. A Fund that enters into forwards or other foreign currency contracts, which are a type of derivative, is subject to the risk that the portfolio manager may be incorrect in his or her judgment of future exchange rate changes.

Foreign Investment Risk. Foreign investments may be subject to lower liquidity, greater price volatility and risks related to adverse political, regulatory, market or economic developments. Foreign investments may involve exposure to changes in foreign currency exchange rates and may be subject to higher withholding and other taxes.

Futures Contracts Risk. A Fund that uses futures contracts, which are a type of derivative, is subject to the risk of loss caused by unanticipated market movements. In addition, there may at times be an imperfect correlation between the movement in the prices of futures contracts and the value of their underlying instruments or indexes and there may at times not be a liquid secondary market for certain futures contracts.

High Yield Securities Risk. High yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") have a much greater risk of default or of not returning principal and their values tend to be more volatile than higher-rated securities with similar maturities.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Loan Risk. Loans may be unrated, less liquid and more difficult to value than traditional debt securities. The highly leveraged capital structure of the borrowers in such transactions may make such loans especially vulnerable to adverse changes in financial, economic or market conditions. A Fund may be unable to sell loans at a desired time or price. The Fund may also not be able to control amendments, waivers or the exercise of any remedies that a lender would have under a direct loan and may assume liability as a lender.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

Swaps Risk. Depending on their structure, swap agreements and options to enter into swap agreements ("swaptions"), both of which are types of derivatives, may increase or decrease a Fund's exposure to long- or short-term interest rates, foreign currency values, mortgage-backed securities, corporate borrowing rates, or credit events or other reference points such as security prices or inflation rates.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Highest Quarter: 3rd Quarter 2009	+5.61%
Lowest Quarter: 2nd Quarter 2013	-2.66%
Year-to-date total return as of 9/30/2017 is +5.04%

Performance Table Heading

rr_PerformanceTableHeading

Average Annual Total Returns for the periods ended 12/31/2016

^[44]

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance before and after taxes is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance before and after taxes is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund) | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

2.65%

5 Years

rr_AverageAnnualReturnYear05

2.23%

10 Years

rr_AverageAnnualReturnYear10

4.34%

(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund) | Class R6

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.45%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.10%

Acquired Fund Fees and Expenses

rr_AcquiredFundFeesAndExpensesOverAssets

0.01%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.56%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.20%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.36%

^[45]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 37

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

159

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

293

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 682

Bar Chart [Heading]

rr_BarChartHeading

Calendar Year Total Returns for Class R6 as of 12/31 each year

^[44]

Annual Return 2007

rr_AnnualReturn2007

6.24%

Annual Return 2008

rr_AnnualReturn2008

2.44%

Annual Return 2009

rr_AnnualReturn2009

12.19%

Annual Return 2010

rr_AnnualReturn2010

8.31%

Annual Return 2011

rr_AnnualReturn2011

8.14%

Annual Return 2012

rr_AnnualReturn2012

5.98%

Annual Return 2013

rr_AnnualReturn2013

(1.22%)

Annual Return 2014

rr_AnnualReturn2014

6.73%

Annual Return 2015

rr_AnnualReturn2015

0.29%

Annual Return 2016

rr_AnnualReturn2016

5.97%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +5.04%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

5.04%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 3rd Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

5.61%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.66%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

5.97%

5 Years

rr_AverageAnnualReturnYear05

3.50%

10 Years

rr_AverageAnnualReturnYear10

5.44%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2016

(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund) | Class R6 | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

4.57%

5 Years

rr_AverageAnnualReturnYear05

2.28%

10 Years

rr_AverageAnnualReturnYear10

3.99%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2016

(WFA Income Funds - Class R6) | (Wells Fargo Core Plus Bond Fund) | Class R6 | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

3.38%

5 Years

rr_AverageAnnualReturnYear05

2.21%

10 Years

rr_AverageAnnualReturnYear10

3.70%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Oct. 31, 2016

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund)

Prospectus:

rr_ProspectusTable

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund seeks to provide current income consistent with capital preservation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

These tables are intended to help you understand the various costs and expenses you will 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)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

December 31, 2018

Expense Example [Heading]

rr_ExpenseExampleHeading

Example of Expenses

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

The example below is intended to help you compare the costs of investing in the Fund with the costs of investing in other mutual funds. The example assumes a $10,000 initial investment, 5% annual total return, and that fees and expenses remain the same as in the tables above. To the extent that the Manager is waiving fees or reimbursing expenses, the example assumes that such waiver or reimbursement will only be in place through the date noted above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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 348% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

348.00%

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Under normal circumstances, we invest:

• at least 80% of the Fund's net assets in U.S. Government obligations; and

• up to 20% of the Fund's net assets in non-government mortgage- and asset-backed securities.

We invest principally in U.S. Government obligations, including debt securities issued or guaranteed by the U.S. Treasury, U.S. Government agencies or government-sponsored entities. We will purchase only securities that are rated, at the time of purchase, within the two highest rating categories assigned by a Nationally Recognized Statistical Ratings Organization, or are deemed by us to be of comparable quality. As part of our investment strategy, we may enter into mortgage dollar rolls. While we may purchase securities of any maturity or duration, under normal circumstances, we expect the portfolio's overall dollar-weighted average effective duration to be less than that of a 3-year U.S. Treasury note. "Dollar-Weighted Average Effective Duration" is an aggregate measure of the sensitivity of a fund's fixed income portfolio securities to changes in interest rates. As a general matter, the price of a fixed income security with a longer effective duration will fluctuate more in response to changes in interest rates than the price of a fixed income security with a shorter effective duration.

We invest in debt securities that we believe offer competitive returns and are undervalued, offering additional income and/or price appreciation potential, relative to other debt securities of similar credit quality and interest rate sensitivity. As part of our investment strategy, we invest in mortgage-backed securities guaranteed by U.S. Government agencies that we believe will sufficiently outperform U.S. Treasuries. We may sell a security that has achieved its desired return or if we believe the security or its sector has become overvalued. We may also sell a security if a more attractive opportunity becomes available or if the security is no longer attractive due to its risk profile or as a result of changes in the overall market environment.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, and is primarily subject to the risks briefly summarized below.

Credit Risk. The issuer or guarantor of a debt security may be unable or perceived to be unable to pay interest or repay principal when they become due, which could cause the value of an investment to decline and a Fund to lose money.

Interest Rate Risk. When interest rates (which are currently near historic lows) rise, the value of debt securities tends to fall. When interest rates decline, interest that a Fund is able to earn on its investments in debt securities may also decline, but the value of those securities may increase.

Management Risk. Investment decisions, techniques, analyses or models implemented by a Fund's manager or sub-adviser in seeking to achieve the Fund's investment objective may not produce the returns expected, may cause the Fund's shares to lose value or may cause the Fund to underperform other funds with similar investment objectives.

Market Risk. The values of, and/or the income generated by, securities held by a Fund may decline due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities can reduce a Fund's returns.

U.S. Government Obligations Risk. U.S. Government obligations may be adversely impacted by changes in interest rates, and securities issued or guaranteed by U.S. Government agencies or government-sponsored entities may not be backed by the full faith and credit of the U.S. Government.

Risk Lose Money [Text]

rr_RiskLoseMoney

An investment in the Fund may lose money

Risk Not Insured Depository Institution [Text]

rr_RiskNotInsuredDepositoryInstitution

An investment in the Fund may lose money, is not a deposit of Wells Fargo Bank, N.A. or its affiliates, is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance is no guarantee of future results. Current month-end performance is available on the Fund's website at wellsfargofunds.com.

Bar Chart Closing [Text Block]

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Highest Quarter: 1st Quarter 2009	+3.54%
Lowest Quarter: 2nd Quarter 2013	-0.45%
Year-to-date total return as of 9/30/2017 is +1.07%

Performance Table Heading

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Average Annual Total Returns for the periods ended 12/31/2016

^[46]

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Past performance is no guarantee of future results.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The following information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year. The Fund's average annual total returns are compared to the performance of one or more indices. Past performance is no guarantee of future results.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

wellsfargofunds.com

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund) | Bloomberg Barclays U.S. 1-3 Year Government Bond Index (reflects no deduction for fees, expenses, or taxes)

Prospectus:

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1 Year

rr_AverageAnnualReturnYear01

0.87%

5 Years

rr_AverageAnnualReturnYear05

0.59%

10 Years

rr_AverageAnnualReturnYear10

2.18%

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund) | Class R6

Prospectus:

rr_ProspectusTable

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 offering price)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management Fees

rr_ManagementFeesOverAssets

0.35%

Distribution (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.06%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.41%

Fee Waivers

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

Total Annual Fund Operating Expenses After Fee Waivers

rr_NetExpensesOverAssets

0.37%

^[47]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 38

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

128

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

226

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 514

Bar Chart [Heading]

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Calendar Year Total Returns for Class R6 as of 12/31 each year

^[46]

Annual Return 2007

rr_AnnualReturn2007

6.25%

Annual Return 2008

rr_AnnualReturn2008

4.39%

Annual Return 2009

rr_AnnualReturn2009

7.28%

Annual Return 2010

rr_AnnualReturn2010

3.94%

Annual Return 2011

rr_AnnualReturn2011

2.46%

Annual Return 2012

rr_AnnualReturn2012

2.48%

Annual Return 2013

rr_AnnualReturn2013

0.06%

Annual Return 2014

rr_AnnualReturn2014

1.01%

Annual Return 2015

rr_AnnualReturn2015

0.60%

Annual Return 2016

rr_AnnualReturn2016

1.27%

Year to Date Return, Label

rr_YearToDateReturnLabel

Year-to-date total return as of 9/30/2017 is +1.07%

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

1.07%

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2017

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Highest Quarter: 1st Quarter 2009

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.54%

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2009

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Lowest Quarter: 2nd Quarter 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(0.45%)

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

1 Year

rr_AverageAnnualReturnYear01

1.27%

5 Years

rr_AverageAnnualReturnYear05

1.08%

10 Years

rr_AverageAnnualReturnYear10

2.95%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund) | Class R6 | (after taxes on distributions)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.41%

5 Years

rr_AverageAnnualReturnYear05

0.28%

10 Years

rr_AverageAnnualReturnYear10

1.86%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

(WFA Income Funds - Class R6) | (Wells Fargo Short Duration Government Bond Fund) | Class R6 | (after taxes on distributions and the sale of Fund Shares)

Prospectus:

rr_ProspectusTable

1 Year

rr_AverageAnnualReturnYear01

0.72%

5 Years

rr_AverageAnnualReturnYear05

0.48%

10 Years

rr_AverageAnnualReturnYear10

1.87%

Inception Date of Share Class

rr_AverageAnnualReturnInceptionDate

Nov. 30, 2012

[1] Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[2] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.40% if redeemed within 12 months from the date of purchase.

[3] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[4] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[5] Investments of $1 million or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 1.00% if redeemed within 18 months from the date of purchase.

[6] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.73% for Class A and 1.48% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[7] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A.

[8] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[9] Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[10] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[11] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

[12] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.72% for Class A and 1.47% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[13] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

[14] Investments of $500,000 or more are not subject to a front-end sales charge but generally will be subject to a deferred sales charge of 0.50% if redeemed within 12 months from the date of purchase.

[15] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.81% for Class A and 1.56% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[16] Effective June 20, 2008, the Advisor Class was renamed Class A and modified to assume the features and attributes of Class A. Historical performance shown for the Class A shares through June 19, 2008 includes Advisor Class expenses. Historical performance shown prior to the inception of the Class C shares reflects the performance of the former Investor Class shares, adjusted to reflect the higher expenses applicable to Class C.

[17] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.70% for Class A and 1.45% for Class C. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[18] Historical performance shown prior to the inception of the Administrator Class shares reflects the performance of the Institutional Class shares, adjusted to reflect the higher expenses applicable to the Administrator Class shares. Historical performance shown for the Administrator class of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[19] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[20] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[21] Historical performance shown for Administrator Class shares prior to their inception reflects the performance of Institutional Class shares and has been adjusted to include the higher expenses applicable to Administrator Class shares.

[22] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.62% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[23] Historical performance shown prior to the inception of the Administrator Class shares reflects the performance of the Institutional Class shares, adjusted to reflect the higher expenses applicable to the Administrator Class shares.

[24] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[25] Historical performance shown for the Administrator Class prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[26] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[27] Historical performance shown for the Administrator Class shares prior to their inception reflects the performance of the Class A shares, and includes the higher expenses applicable to Class A. If these expenses had not been included, returns would be higher.

[28] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.65% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[29] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.55% for Administrator Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[30] Historical performance shown for Institutional Class prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen Adjustable Rate Fund.

[31] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[32] Performance Since 5/31/2013

[33] Expenses have been adjusted as necessary from amounts incurred during the Fund's most recent fiscal year to reflect current fees and expenses.

[34] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Class A shares, and is not adjusted to reflect the Institutional Class expenses. If these expenses had been included, returns for the Institutional Class would be higher.

[35] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.40% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[36] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[37] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and is not adjusted to reflect the Institutional Class expenses. If these expenses had been included, returns for the Institutional Class would be higher. Historical performance shown for all classes of the Fund prior to July 12, 2010 is based on the performance of the Fund's predecessor, Evergreen High Income Fund.

[38] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[39] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and includes the higher expenses applicable to the Administrator Class shares. If these expenses had not been included, returns would be higher.

[40] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.45% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[41] Historical performance shown for the Institutional Class shares prior to their inception reflects the performance of the Administrator Class shares, and includes the higher expenses applicable to the Administrator Class shares. If these expenses had not been included, returns would be higher.

[42] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.50% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[43] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.35% for Institutional Class. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[44] Historical performance shown for Class R6 shares prior to their inception reflects the performance of Institutional Class shares and includes the higher expenses applicable to Institutional Class shares. If these expenses had not been included, returns would be higher.

[45] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at 0.35% for Class R6. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.

[46] Historical performance shown for Class R6 shares prior to their inception reflects the performance of the Institutional Class shares, and includes the higher expenses applicable to the Institutional Class shares. If theses expenses had not been included, returns would be higher.

[47] The Manager has contractually committed through December 31, 2018, to waive fees and/or reimburse expenses to the extent necessary to cap the Fund's Total Annual Fund Operating Expenses After Fee Waivers at the amounts shown above. Brokerage commissions, stamp duty fees, interest, taxes, acquired fund fees and expenses, and extraordinary expenses are excluded from the expense cap. After this time, the cap may be increased or the commitment to maintain the cap may be terminated only with the approval of the Board of Trustees.