497

Stradley, Ronon, Stevens & Young, LLP
2005 Market Street, Suite 2600
Philadelphia, Pennsylvania 19103-7018
(215) 564-8000

May 19, 2020

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
Attention: Jaea Hahn

RE:	Delaware Group Limited-Term Government Funds (the “Registrant”)
	File Nos. 811-03363; 002-75526

Dear Ms. Hahn:

Pursuant to Rule 497(c) under the Securities Act of 1933, as amended, submitted electronically via the EDGAR system, please find enclosed certain risk/return summary information in an interactive data format using the eXtensible Business Reporting Language (the “XBRL exhibits”). The XBRL exhibits reflect the Item 2, 3 and 4 risk/return summary disclosure required by Form N-1A, which disclosure was included in the definitive prospectuses dated April 29, 2020, for the series of the Registrant, that was filed with the U.S. Securities and Exchange Commission via the EDGAR system on May 4, 2020 (Accession No. 0001206774-20-001464) pursuant to Rule 497(c) under the Securities Act of 1933.

If you have any questions or comments regarding this filing, please call me at (215) 564-8099.

Sincerely,

/s/ Jonathan M. Kopcsik

Jonathan M. Kopcsik

cc:	Earthen Johnson
	Macquarie Investment Management Bruce G. Leto

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Delaware Limited-Term Diversified Income Fund

Delaware Limited-Term Diversified Income Fund

What is the Fund’s investment objective?

Delaware Limited-Term Diversified Income Fund seeks maximum total return, consistent with reasonable risk.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Limited-Term Diversified Income Fund	Class A	Class C		Class R	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	2.75%	none		none	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	1.00%	[1]	none	none	none

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

Annual Fund Operating Expenses - Delaware Limited-Term Diversified Income Fund		Class A	Class C	Class R	Institutional Class	Class R6
Management fees		0.50%	0.50%	0.50%	0.50%	0.50%
Distribution and service (12b-1) fees		0.25%	1.00%	0.50%	none	none
Other expenses		0.21%	0.21%	0.21%	0.21%	0.14%	[1]
Total annual fund operating expenses		0.96%	1.71%	1.21%	0.71%	0.64%
Fee waivers and expense reimbursements	[2]	(0.42%)	(0.32%)	(0.32%)	(0.32%)	(0.32%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.54%	1.39%	0.89%	0.39%	0.32%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. In addition, the example shows expenses for Class C shares, assuming those shares were not redeemed at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the applicable waivers and reimbursements for the 1-year contractual period and the total operating expenses without waivers for years 2 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Limited-Term Diversified Income Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	329	532	751	1,383
Class C	242	508	898	1,993
Class R	91	352	634	1,438
Institutional Class	40	195	363	852
Class R6	33	173	325	768

Expense Example, No Redemption	1 year	3 years	5 years	10 years
Delaware Limited-Term Diversified Income Fund | Class C | USD ($)	142	508	898	1,993

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 the 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 123% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US corporations (80% policy). Investment grade fixed income securities are securities rated BBB- or higher by Standard & Poor’s Financial Services LLC (S&P) and Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s), or similarly rated by another nationally recognized statistical rating organization (NRSRO), or those that are deemed to be of comparable quality. The Fund will maintain an average effective duration from one to three years. The Fund’s investment manager, Delaware Management Company (Manager), will determine how much of the Fund’s assets to allocate among the different types of fixed income securities in which the Fund may invest based on the Manager’s evaluation of economic and market conditions and its assessment of the returns and potential for appreciation that can be achieved from various sectors of the fixed income market.

The Manager may seek investment advice and recommendations from its affiliates: Macquarie Investment Management Austria Kapitalanlage AG (MIMAK), Macquarie Investment Management Europe Limited (MIMEL), and Macquarie Investment Management Global Limited (MIMGL) (together, the “Affiliated Sub-Advisors”). The Manager may also permit these Affiliated Sub-Advisors to execute Fund security trades on behalf of the Manager and exercise investment discretion for securities in certain markets where the Manager believes it will be beneficial to utilize an Affiliated Sub-Advisor’s specialized market knowledge.

The corporate debt obligations in which the Fund may invest include bonds, notes, debentures, and commercial paper of US companies and, subject to the limitations described below, non-US companies. The Fund may also invest in a variety of securities that are issued or guaranteed as to the payment of principal and interest by the US government, and by various agencies or instrumentalities, which have been established or are sponsored by the US government, and, subject to the limitations described below, securities issued by foreign governments.

Additionally, the Fund may invest in mortgage-backed securities issued or guaranteed by the US government, its agencies or instrumentalities, government-sponsored corporations, and mortgage-backed securities issued by certain private, nongovernment entities. The Fund may also invest in securities that are backed by assets such as receivables on home equity and credit card loans, automobile, mobile home, recreational vehicle and other loans, wholesale dealer floor plans, and leases.

The Fund may invest up to 20% of its net assets in below-investment-grade securities (also known as high yield or “junk” bonds).

The Fund may also invest up to 30% of its net assets in foreign securities, including up to 10% of its net assets in securities of issuers located in emerging markets. The Fund’s total non-US dollar currency exposure will be limited, in the aggregate, to no more than 10% of its net assets.

The Fund may use a wide range of derivatives instruments, typically including options, futures contracts, options on futures contracts, forward foreign currency contracts, and swaps. The Fund will use derivatives for both hedging and nonhedging purposes. For example, the Fund may invest in: futures and options to manage duration and for defensive purposes, such as to protect gains or hedge against potential losses in the portfolio without actually selling a security, or to stay fully invested; forward foreign currency contracts to manage foreign currency exposure; interest rate swaps to neutralize the impact of interest rate changes; credit default swaps to hedge against a credit event, to gain exposure to certain securities or markets, or to enhance total return; and index swaps to enhance return or to effect diversification. The Fund will not use derivatives for reasons inconsistent with its investment objective and will limit its investments in derivatives instruments to 20% of its net assets.

The Fund’s 80% policy is nonfundamental and may be changed without shareholder approval. Fund shareholders would be given at least 60 days’ notice prior to any such change.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Prepayment risk — The risk that the principal on a bond that is held by a fund will be prepaid prior to maturity at a time when interest rates are lower than what that bond was paying. A fund may then have to reinvest that money at a lower interest rate.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Derivatives risk — Derivatives contracts, such as futures, forward foreign currency contracts, options, and swaps, may involve additional expenses (such as the payment of premiums) and are subject to significant loss if a security, index, reference rate, or other asset or market factor to which a derivatives contract is associated, moves in the opposite direction from what the portfolio manager anticipated. When used for hedging, the change in value of the derivatives instrument may also not correlate specifically with the currency, rate, or other risk being hedged, in which case a fund may not realize the intended benefits. Derivatives contracts are also subject to the risk that the counterparty may fail to perform its obligations under the contract due to, among other reasons, financial difficulties (such as a bankruptcy or reorganization).

Mortgage-backed and asset-backed securities risk — The risk that the principal on mortgage-backed or asset-backed securities may be prepaid at any time, which will reduce the yield and market value.

Leveraging risk — The risk that certain fund transactions, such as reverse repurchase agreements, short sales, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivatives instruments, may give rise to leverage, causing a fund to be more volatile than if it had not been leveraged, which may result in increased losses to the fund.

Foreign risk — The risk that foreign securities (particularly in emerging markets) may be adversely affected by political instability, changes in currency exchange rates, inefficient markets and higher transaction costs, foreign economic conditions, the imposition of economic or trade sanctions, or inadequate or different regulatory and accounting standards.

Valuation risk — The risk that a less liquid secondary market may make it more difficult for a fund to obtain precise valuations of certain securities in its portfolio.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Limited-Term Diversified Income Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps. You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 1.99% for the quarter ended June 30, 2011, and its lowest quarterly return was -2.22% for the quarter ended June 30, 2013. The maximum Class A sales charge of 2.75%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Limited-Term Diversified Income Fund	1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A	1.64%	1.14%	1.40%
Class A | After Taxes on Distributions	0.62%	0.30%	0.61%
Class A | After Taxes on Distributions and Sales	0.96%	0.49%	0.76%
Class C	2.63%	0.84%	0.84%
Class R	4.27%	1.37%	1.34%
Institutional Class	4.67%	1.85%	1.85%
Class R6	4.74%	none		1.88%	May 01, 2017
Bloomberg Barclays 1-3 Year US Government/Credit Index (reflects no deduction for fees, expenses, or taxes)	4.03%	1.67%	1.54%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Exempt Income Fund

Delaware Tax-Exempt Income Fund

What is the Fund’s investment objective?

Delaware Tax-Exempt Income Fund seeks a high level of interest income that is exempt from federal income tax.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Exempt Income Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	2.75%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Exempt Income Fund		Class A		Institutional Class	Class R6
Management fees		0.50%		0.50%	0.50%
Distribution and service (12b-1) fees		0.25%	[1]	none	none
Other expenses		0.15%		0.15%	0.13%	[2]
Total annual fund operating expenses		0.90%		0.65%	0.63%
Fee waivers and expense reimbursements	[3]	(0.10%)		none	(0.01%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.80%		0.65%	0.62%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the applicable expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Exempt Income Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	354	534	740	1,334
Institutional Class	66	208	362	810
Class R6	63	200	349	784

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 the 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 39% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. The Fund diversifies its assets among municipal bonds and securities of different states, municipalities, and US territories.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Fund’s investment manager, Delaware Management Company (Manager), to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will invest its assets in securities with maturities of various lengths, depending on market conditions, but will typically have a dollar-weighted average effective maturity of between 3 and 10 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Exempt Income Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Tax Exempt Income Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 3.70% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.01% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 2.75%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Exempt Income Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		1.78%	1.51%	3.08%
Class A | After Taxes on Distributions		1.78%	1.51%	3.07%
Class A | After Taxes on Distributions and Sales		2.25%	1.98%	3.25%
Institutional Class		6.13%	2.62%		2.52%	May 01, 2013
Class R6		6.38%	2.54%		2.51%	May 01, 2013
Bloomberg Barclays 3-15 Year Blend Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	6.83%	3.20%	3.93%
Bloomberg Barclays 1-15 Year Municipal Index (reflects no deduction for fees, expenses or taxes)	[1]	6.44%	3.01%	3.66%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Exempt Opportunities Fund

Delaware Tax-Exempt Opportunities Fund

What is the Fund’s investment objective?

Delaware Tax-Exempt Opportunities Fund seeks a high level of interest income that is exempt from federal income tax and, secondarily, total return.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Exempt Opportunities Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	4.50%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Exempt Opportunities Fund		Class A	Institutional Class	Class R6
Management fees		0.55%	0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	none	none
Other expenses		0.19%	0.19%	0.18%	[1]
Total annual fund operating expenses		0.99%	0.74%	0.73%
Fee waivers and expense reimbursements	[2]	(0.04%)	(0.08%)	(0.08%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.95%	0.66%	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Exempt Opportunities Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	543	743	965	1,601
Institutional Class	67	220	395	903
Class R6	66	217	390	891

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 the 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 60% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. The Fund diversifies its assets among municipal bonds and securities of different states, municipalities, and US territories.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund also may invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will invest its assets in securities with maturities of various lengths, depending on market conditions, but will typically have a dollar-weighted average effective maturity of between 5 and 30 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Exempt Opportunities Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Tax Exempt Opportunities Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.58% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -6.04% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Exempt Opportunities Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		3.04%	1.93%	3.63%
Class A | After Taxes on Distributions		3.04%	1.93%	3.56%
Class A | After Taxes on Distributions and Sales		2.93%	2.20%	3.54%
Institutional Class		7.58%	2.97%		2.82%	May 01, 2013
Class R6		7.51%	2.88%		2.81%	May 01, 2013
Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	7.54%	3.53%	4.34%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free California II Fund

Delaware Tax-Free California II Fund

What is the Fund’s investment objective?

Delaware Tax-Free California II Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of California.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Free California II Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	4.50%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Free California II Fund		Class A	Institutional Class	Class R6
Management fees		0.55%	0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	none	none
Other expenses		0.41%	0.41%	0.39%	[1]
Total annual fund operating expenses		1.21%	0.96%	0.94%
Fee waivers and expense reimbursements	[2]	(0.29%)	(0.32%)	(0.29%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.92%	0.64%	0.65%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Free California II Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	540	761	1,030	1,799
Institutional Class	65	240	467	1,118
Class R6	66	240	462	1,100

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 the 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 40% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from California state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in California and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Free California II Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors California Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.06% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.31% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Free California II Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		3.22%	2.12%	3.68%
Class A | After Taxes on Distributions		3.22%	2.12%	3.68%
Class A | After Taxes on Distributions and Sales		2.99%	2.34%	3.63%
Institutional Class		7.73%	3.27%		3.25%	May 01, 2013
Class R6		7.73%	3.20%		3.25%	May 01, 2013
Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	7.54%	3.53%	4.34%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free New Jersey Fund

Delaware Tax-Free New Jersey Fund

What is the Fund’s investment objective?

Delaware Tax-Free New Jersey Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of New Jersey.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Free New Jersey Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	4.50%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Free New Jersey Fund		Class A	Institutional Class	Class R6
Management fees		0.55%	0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	none	none
Other expenses		0.39%	0.39%	0.38%	[1]
Total annual fund operating expenses		1.19%	0.94%	0.93%
Fee waivers and expense reimbursements	[2]	(0.29%)	(0.26%)	(0.27%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.90%	0.68%	0.66%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Free New Jersey Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	538	755	1,020	1,778
Institutional Class	69	246	468	1,106
Class R6	67	241	460	1,092

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 the 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 47% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, at least 80% of the Fund’s net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of New Jersey (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in New Jersey and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Free New Jersey Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors New Jersey Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.09% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.03% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Free New Jersey Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		2.38%	1.91%	3.08%
Class A | After Taxes on Distributions		2.38%	1.91%	3.08%
Class A | After Taxes on Distributions and Sales		2.50%	2.19%	3.17%
Institutional Class		7.00%	3.04%		2.64%	May 01, 2013
Class R6		7.07%	3.00%		2.63%	May 01, 2013
Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	7.54%	3.53%	4.34%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free New York II Fund

Delaware Tax-Free New York II Fund

What is the Fund’s investment objective?

Delaware Tax-Free New York II Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of New York.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Free New York II Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	4.50%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Free New York II Fund		Class A	Institutional Class	Class R6
Management fees		0.55%	0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	none	none
Other expenses		0.20%	0.20%	0.20%	[1]
Total annual fund operating expenses		1.00%	0.75%	0.75%
Fee waivers and expense reimbursements	[2]	(0.14%)	(0.15%)	(0.13%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.86%	0.60%	0.62%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Free New York II Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	534	727	951	1,595
Institutional Class	61	209	387	901
Class R6	63	213	391	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 the 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 27% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from New York state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in New York and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as education) will decline because of changing expectations for the performance of that industry or sector.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Free New York II Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors New York Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 3.85% for the quarter ended June 30, 2011, and its lowest quarterly return was -5.11% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Free New York II Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		3.14%	1.86%	3.16%
Class A | After Taxes on Distributions		3.14%	1.86%	3.16%
Class A | After Taxes on Distributions and Sales		2.98%	2.18%	3.25%
Institutional Class		7.68%	3.01%		2.74%	May 01, 2013
Class R6		7.68%	2.95%		2.74%	May 01, 2013
Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	7.54%	3.53%	4.34%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free Oregon Fund

Delaware Tax-Free Oregon Fund

What is the Fund’s investment objective?

Delaware Tax-Free Oregon Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of Oregon.

What are the Fund’s fees and expenses?

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder fees (fees paid directly from your investment)

Shareholder Fees - Delaware Tax-Free Oregon Fund	Class A	Institutional Class	Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price	4.50%	none	none
Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower	none	none	none

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

Annual Fund Operating Expenses - Delaware Tax-Free Oregon Fund		Class A	Institutional Class	Class R6
Management fees		0.55%	0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	none	none
Other expenses		0.36%	0.36%	0.35%	[1]
Total annual fund operating expenses		1.16%	0.91%	0.90%
Fee waivers and expense reimbursements	[2]	(0.25%)	(0.25%)	(0.23%)
Total annual fund operating expenses after fee waivers and expense reimbursements		0.91%	0.66%	0.67%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Delaware Tax-Free Oregon Fund - USD ($)	1 year	3 years	5 years	10 years
Class A	539	753	1,012	1,752
Institutional Class	67	239	454	1,072
Class R6	68	240	452	1,064

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 the 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.

What are the Fund’s principal investment strategies?

Under normal circumstances, at least 80% of the Fund's net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of Oregon (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in Oregon and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

What are the principal risks of investing in the Fund?

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

How has Delaware Tax-Free Oregon Fund performed?

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Oregon Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Calendar year-by-year total return (Class A)

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.21% for the quarter ended Sept. 30, 2010, and its lowest quarterly return was -5.78% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Average annual total returns for periods ended December 31, 2019

Average Annual Total Returns - Delaware Tax-Free Oregon Fund		1 year	5 years	10 years	10 years or lifetime	Inception Date
Class A		1.57%	1.51%	2.90%
Class A | After Taxes on Distributions		1.57%	1.51%	2.89%
Class A | After Taxes on Distributions and Sales		1.95%	1.82%	2.95%
Institutional Class		6.03%	2.65%		2.27%	May 01, 2013
Class R6		6.05%	2.59%		2.27%	May 01, 2013
Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)	[1]	7.54%	3.53%	4.34%
ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)	[1]	7.74%	3.60%	4.49%

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

[1] Class C shares redeemed within one year of purchase are subject to a 1.00% contingent deferred sales charge (CDSC).

[1] "Other expenses" account for Class R6 shares not being subject to certain expenses as described further in the section of the Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any 12b-1 fees, acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.39% of the Fund's average daily net assets from April 29, 2020 through April 30, 2021 for all share classes other than R6, and 0.32% of the Fund's Class R6 shares' average daily net assets from April 29, 2020 through April 30, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund. Additionally, the Fund's distributor, Delaware Distributors, L.P. (Distributor), has contracted to limit the Fund's Class A shares' 12b-1 fees to no more than 0.15% of average daily net assets from April 29, 2020 through April 30, 2021. This waiver may be terminated only by agreement of the Distributor and the Fund.

[1] The Fund's distributor, Delaware Distributors, L.P. (Distributor), has contracted to limit the Class A shares' 12b-1 fees to no more than 0.15% of average daily net assets from Oct. 4, 2019 through Oct. 31, 2021. This waiver may be terminated only by agreement of the Distributor and the Fund.

[2] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[3] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.92%, 0.70% and 0.62% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, from Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its primary broad-based securities index to the Bloomberg Barclays 3-15 Year Blend Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflects the Fund's investment strategies.

[1] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.95%, 0.66% and 0.65% of the Fund's average daily net assets for Class A shares, Institutional Class and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

[1] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.92%, 0.64% and 0.65% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

[1] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.90%, 0.68% and 0.66% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

[1] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.86%, 0.60% and 0.62% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

[1] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[2] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.91%, 0.66% and 0.67% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[1] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

XML

Label

Element

Value

Risk/Return:

dglt_RiskReturn1Abstract

Document Type

dei_DocumentType

497

Document Period End Date

dei_DocumentPeriodEndDate

Dec. 31, 2019

Registrant Name

dei_EntityRegistrantName

DELAWARE GROUP LIMITED-TERM GOVERNMENT FUNDS

Central Index Key

dei_EntityCentralIndexKey

0000357059

Amendment Flag

dei_AmendmentFlag

false

Document Creation Date

dei_DocumentCreationDate

May 04, 2020

Document Effective Date

dei_DocumentEffectiveDate

May 04, 2020

Prospectus Date

rr_ProspectusDate

Apr. 29, 2020

Entity Inv Company Type

dei_EntityInvCompanyType

N-1A

Delaware Limited-Term Diversified Income Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Limited-Term Diversified Income Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Limited-Term Diversified Income Fund seeks maximum total return, consistent with reasonable risk.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 123% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

123.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. In addition, the example shows expenses for Class C shares, assuming those shares were not redeemed at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the applicable waivers and reimbursements for the 1-year contractual period and the total operating expenses without waivers for years 2 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US corporations (80% policy). Investment grade fixed income securities are securities rated BBB- or higher by Standard & Poor’s Financial Services LLC (S&P) and Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s), or similarly rated by another nationally recognized statistical rating organization (NRSRO), or those that are deemed to be of comparable quality. The Fund will maintain an average effective duration from one to three years. The Fund’s investment manager, Delaware Management Company (Manager), will determine how much of the Fund’s assets to allocate among the different types of fixed income securities in which the Fund may invest based on the Manager’s evaluation of economic and market conditions and its assessment of the returns and potential for appreciation that can be achieved from various sectors of the fixed income market.

The Manager may seek investment advice and recommendations from its affiliates: Macquarie Investment Management Austria Kapitalanlage AG (MIMAK), Macquarie Investment Management Europe Limited (MIMEL), and Macquarie Investment Management Global Limited (MIMGL) (together, the “Affiliated Sub-Advisors”). The Manager may also permit these Affiliated Sub-Advisors to execute Fund security trades on behalf of the Manager and exercise investment discretion for securities in certain markets where the Manager believes it will be beneficial to utilize an Affiliated Sub-Advisor’s specialized market knowledge.

The corporate debt obligations in which the Fund may invest include bonds, notes, debentures, and commercial paper of US companies and, subject to the limitations described below, non-US companies. The Fund may also invest in a variety of securities that are issued or guaranteed as to the payment of principal and interest by the US government, and by various agencies or instrumentalities, which have been established or are sponsored by the US government, and, subject to the limitations described below, securities issued by foreign governments.

Additionally, the Fund may invest in mortgage-backed securities issued or guaranteed by the US government, its agencies or instrumentalities, government-sponsored corporations, and mortgage-backed securities issued by certain private, nongovernment entities. The Fund may also invest in securities that are backed by assets such as receivables on home equity and credit card loans, automobile, mobile home, recreational vehicle and other loans, wholesale dealer floor plans, and leases.

The Fund may invest up to 20% of its net assets in below-investment-grade securities (also known as high yield or “junk” bonds).

The Fund may also invest up to 30% of its net assets in foreign securities, including up to 10% of its net assets in securities of issuers located in emerging markets. The Fund’s total non-US dollar currency exposure will be limited, in the aggregate, to no more than 10% of its net assets.

The Fund may use a wide range of derivatives instruments, typically including options, futures contracts, options on futures contracts, forward foreign currency contracts, and swaps. The Fund will use derivatives for both hedging and nonhedging purposes. For example, the Fund may invest in: futures and options to manage duration and for defensive purposes, such as to protect gains or hedge against potential losses in the portfolio without actually selling a security, or to stay fully invested; forward foreign currency contracts to manage foreign currency exposure; interest rate swaps to neutralize the impact of interest rate changes; credit default swaps to hedge against a credit event, to gain exposure to certain securities or markets, or to enhance total return; and index swaps to enhance return or to effect diversification. The Fund will not use derivatives for reasons inconsistent with its investment objective and will limit its investments in derivatives instruments to 20% of its net assets.

The Fund’s 80% policy is nonfundamental and may be changed without shareholder approval. Fund shareholders would be given at least 60 days’ notice prior to any such change.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US corporations (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Prepayment risk — The risk that the principal on a bond that is held by a fund will be prepaid prior to maturity at a time when interest rates are lower than what that bond was paying. A fund may then have to reinvest that money at a lower interest rate.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Derivatives risk — Derivatives contracts, such as futures, forward foreign currency contracts, options, and swaps, may involve additional expenses (such as the payment of premiums) and are subject to significant loss if a security, index, reference rate, or other asset or market factor to which a derivatives contract is associated, moves in the opposite direction from what the portfolio manager anticipated. When used for hedging, the change in value of the derivatives instrument may also not correlate specifically with the currency, rate, or other risk being hedged, in which case a fund may not realize the intended benefits. Derivatives contracts are also subject to the risk that the counterparty may fail to perform its obligations under the contract due to, among other reasons, financial difficulties (such as a bankruptcy or reorganization).

Mortgage-backed and asset-backed securities risk — The risk that the principal on mortgage-backed or asset-backed securities may be prepaid at any time, which will reduce the yield and market value.

Leveraging risk — The risk that certain fund transactions, such as reverse repurchase agreements, short sales, loans of portfolio securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivatives instruments, may give rise to leverage, causing a fund to be more volatile than if it had not been leveraged, which may result in increased losses to the fund.

Foreign risk — The risk that foreign securities (particularly in emerging markets) may be adversely affected by political instability, changes in currency exchange rates, inefficient markets and higher transaction costs, foreign economic conditions, the imposition of economic or trade sanctions, or inadequate or different regulatory and accounting standards.

Valuation risk — The risk that a less liquid secondary market may make it more difficult for a fund to obtain precise valuations of certain securities in its portfolio.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Limited-Term Diversified Income Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps. You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 1.99% for the quarter ended June 30, 2011, and its lowest quarterly return was -2.22% for the quarter ended June 30, 2013. The maximum Class A sales charge of 2.75%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Limited-Term Diversified Income Fund | Bloomberg Barclays 1-3 Year US Government/Credit Index (reflects no deduction for fees, expenses, or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses, or taxes.

1 Year

rr_AverageAnnualReturnYear01

4.03%

5 Years

rr_AverageAnnualReturnYear05

1.67%

10 Years

rr_AverageAnnualReturnYear10

1.54%

Delaware Limited-Term Diversified Income Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

DTRIX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.75%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.21%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.96%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.42%)

^[1]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.54%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 329

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

532

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

751

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,383

Annual Return 2010

rr_AnnualReturn2010

3.70%

Annual Return 2011

rr_AnnualReturn2011

2.78%

Annual Return 2012

rr_AnnualReturn2012

2.49%

Annual Return 2013

rr_AnnualReturn2013

(1.81%)

Annual Return 2014

rr_AnnualReturn2014

1.28%

Annual Return 2015

rr_AnnualReturn2015

0.62%

Annual Return 2016

rr_AnnualReturn2016

2.42%

Annual Return 2017

rr_AnnualReturn2017

2.11%

Annual Return 2018

rr_AnnualReturn2018

(1.08%)

Annual Return 2019

rr_AnnualReturn2019

4.51%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

1.99%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Jun. 30, 2013

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(2.22%)

1 Year

rr_AverageAnnualReturnYear01

1.64%

5 Years

rr_AverageAnnualReturnYear05

1.14%

10 Years

rr_AverageAnnualReturnYear10

1.40%

Delaware Limited-Term Diversified Income Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

0.62%

5 Years

rr_AverageAnnualReturnYear05

0.30%

10 Years

rr_AverageAnnualReturnYear10

0.61%

Delaware Limited-Term Diversified Income Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

0.96%

5 Years

rr_AverageAnnualReturnYear05

0.49%

10 Years

rr_AverageAnnualReturnYear10

0.76%

Delaware Limited-Term Diversified Income Fund | Class C

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

DTICX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

1.00%

^[2]

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Other expenses

rr_OtherExpensesOverAssets

0.21%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.71%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.32%)

^[1]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

1.39%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 242

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

508

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

898

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,993

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

142

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

508

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

898

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 1,993

1 Year

rr_AverageAnnualReturnYear01

2.63%

5 Years

rr_AverageAnnualReturnYear05

0.84%

10 Years

rr_AverageAnnualReturnYear10

0.84%

Delaware Limited-Term Diversified Income Fund | Class R

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

DLTRX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.50%

Other expenses

rr_OtherExpensesOverAssets

0.21%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.21%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.32%)

^[1]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.89%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 91

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

352

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

634

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,438

1 Year

rr_AverageAnnualReturnYear01

4.27%

5 Years

rr_AverageAnnualReturnYear05

1.37%

10 Years

rr_AverageAnnualReturnYear10

1.34%

Delaware Limited-Term Diversified Income Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

DTINX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.21%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.71%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.32%)

^[1]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.39%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 40

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

195

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

363

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 852

1 Year

rr_AverageAnnualReturnYear01

4.67%

5 Years

rr_AverageAnnualReturnYear05

1.85%

10 Years

rr_AverageAnnualReturnYear10

1.85%

Delaware Limited-Term Diversified Income Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

DLTZX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.14%

^[3]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.64%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.32%)

^[1]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.32%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 33

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

173

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

325

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 768

1 Year

rr_AverageAnnualReturnYear01

4.74%

5 Years

rr_AverageAnnualReturnYear05

none

10 years or lifetime

rr_AverageAnnualReturnSinceInception

1.88%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2017

Delaware Tax-Exempt Income Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Exempt Income Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Exempt Income Fund seeks a high level of interest income that is exempt from federal income tax.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 39% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

39.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the applicable expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. The Fund diversifies its assets among municipal bonds and securities of different states, municipalities, and US territories.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Fund’s investment manager, Delaware Management Company (Manager), to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will invest its assets in securities with maturities of various lengths, depending on market conditions, but will typically have a dollar-weighted average effective maturity of between 3 and 10 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Exempt Income Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Tax Exempt Income Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 3.70% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.01% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 2.75%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Exempt Income Fund | Bloomberg Barclays 3-15 Year Blend Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

6.83%

^[4]

5 Years

rr_AverageAnnualReturnYear05

3.20%

^[4]

10 Years

rr_AverageAnnualReturnYear10

3.93%

^[4]

Delaware Tax-Exempt Income Fund | Bloomberg Barclays 1-15 Year Municipal Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

6.44%

^[4]

5 Years

rr_AverageAnnualReturnYear05

3.01%

^[4]

10 Years

rr_AverageAnnualReturnYear10

3.66%

^[4]

Delaware Tax-Exempt Income Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[4]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[4]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[4]

Delaware Tax-Exempt Income Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FITAX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

2.75%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

^[5]

Other expenses

rr_OtherExpensesOverAssets

0.15%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.90%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.10%)

^[6]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.80%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 354

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

534

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

740

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,334

Annual Return 2010

rr_AnnualReturn2010

0.71%

Annual Return 2011

rr_AnnualReturn2011

10.32%

Annual Return 2012

rr_AnnualReturn2012

7.23%

Annual Return 2013

rr_AnnualReturn2013

(3.18%)

Annual Return 2014

rr_AnnualReturn2014

8.88%

Annual Return 2015

rr_AnnualReturn2015

2.53%

Annual Return 2016

rr_AnnualReturn2016

0.14%

Annual Return 2017

rr_AnnualReturn2017

3.05%

Annual Return 2018

rr_AnnualReturn2018

0.11%

Annual Return 2019

rr_AnnualReturn2019

6.04%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.70%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.01%)

1 Year

rr_AverageAnnualReturnYear01

1.78%

5 Years

rr_AverageAnnualReturnYear05

1.51%

10 Years

rr_AverageAnnualReturnYear10

3.08%

Delaware Tax-Exempt Income Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

1.78%

5 Years

rr_AverageAnnualReturnYear05

1.51%

10 Years

rr_AverageAnnualReturnYear10

3.07%

Delaware Tax-Exempt Income Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.25%

5 Years

rr_AverageAnnualReturnYear05

1.98%

10 Years

rr_AverageAnnualReturnYear10

3.25%

Delaware Tax-Exempt Income Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FITDX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.15%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.65%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

none

^[6]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.65%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 66

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

208

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

362

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 810

1 Year

rr_AverageAnnualReturnYear01

6.13%

5 Years

rr_AverageAnnualReturnYear05

2.62%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.52%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Exempt Income Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FITEX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.50%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.13%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.63%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.01%)

^[6]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.62%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 63

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

200

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

349

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 784

1 Year

rr_AverageAnnualReturnYear01

6.38%

5 Years

rr_AverageAnnualReturnYear05

2.54%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.51%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Exempt Opportunities Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Exempt Opportunities Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Exempt Opportunities Fund seeks a high level of interest income that is exempt from federal income tax and, secondarily, total return.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 60% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

60.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. The Fund diversifies its assets among municipal bonds and securities of different states, municipalities, and US territories.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund also may invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will invest its assets in securities with maturities of various lengths, depending on market conditions, but will typically have a dollar-weighted average effective maturity of between 5 and 30 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities the income from which is exempt from federal income tax, including the federal alternative minimum tax. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Exempt Opportunities Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Tax Exempt Opportunities Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.58% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -6.04% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Exempt Opportunities Fund | Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.54%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.53%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.34%

^[8]

Delaware Tax-Exempt Opportunities Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[8]

Delaware Tax-Exempt Opportunities Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

EIITX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.19%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.99%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.04%)

^[9]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.95%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 543

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

743

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

965

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,601

Annual Return 2010

rr_AnnualReturn2010

0.67%

Annual Return 2011

rr_AnnualReturn2011

11.76%

Annual Return 2012

rr_AnnualReturn2012

8.92%

Annual Return 2013

rr_AnnualReturn2013

(4.97%)

Annual Return 2014

rr_AnnualReturn2014

11.46%

Annual Return 2015

rr_AnnualReturn2015

3.08%

Annual Return 2016

rr_AnnualReturn2016

0.13%

Annual Return 2017

rr_AnnualReturn2017

3.91%

Annual Return 2018

rr_AnnualReturn2018

(0.44%)

Annual Return 2019

rr_AnnualReturn2019

7.36%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.58%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(6.04%)

1 Year

rr_AverageAnnualReturnYear01

3.04%

5 Years

rr_AverageAnnualReturnYear05

1.93%

10 Years

rr_AverageAnnualReturnYear10

3.63%

Delaware Tax-Exempt Opportunities Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

3.04%

5 Years

rr_AverageAnnualReturnYear05

1.93%

10 Years

rr_AverageAnnualReturnYear10

3.56%

Delaware Tax-Exempt Opportunities Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.93%

5 Years

rr_AverageAnnualReturnYear05

2.20%

10 Years

rr_AverageAnnualReturnYear10

3.54%

Delaware Tax-Exempt Opportunities Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

EIIAX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.19%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.74%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.08%)

^[9]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.66%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

220

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

395

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 903

1 Year

rr_AverageAnnualReturnYear01

7.58%

5 Years

rr_AverageAnnualReturnYear05

2.97%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.82%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Exempt Opportunities Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

EIINX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.18%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.73%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.08%)

^[9]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.65%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 66

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

217

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

390

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 891

1 Year

rr_AverageAnnualReturnYear01

7.51%

5 Years

rr_AverageAnnualReturnYear05

2.88%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.81%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free California II Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Free California II Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Free California II Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of California.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 40% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

40.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from California state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in California and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from California state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as transportation) will decline because of changing expectations for the performance of that industry or sector.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Free California II Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors California Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.06% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.31% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free California II Fund | Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.54%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.53%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.34%

^[8]

Delaware Tax-Free California II Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[8]

Delaware Tax-Free California II Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FICAX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.41%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.21%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.29%)

^[10]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.92%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 540

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

761

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,030

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,799

Annual Return 2010

rr_AnnualReturn2010

0.50%

Annual Return 2011

rr_AnnualReturn2011

10.35%

Annual Return 2012

rr_AnnualReturn2012

8.53%

Annual Return 2013

rr_AnnualReturn2013

(2.91%)

Annual Return 2014

rr_AnnualReturn2014

10.62%

Annual Return 2015

rr_AnnualReturn2015

3.46%

Annual Return 2016

rr_AnnualReturn2016

(0.06%)

Annual Return 2017

rr_AnnualReturn2017

3.78%

Annual Return 2018

rr_AnnualReturn2018

0.24%

Annual Return 2019

rr_AnnualReturn2019

7.52%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.06%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.31%)

1 Year

rr_AverageAnnualReturnYear01

3.22%

5 Years

rr_AverageAnnualReturnYear05

2.12%

10 Years

rr_AverageAnnualReturnYear10

3.68%

Delaware Tax-Free California II Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

3.22%

5 Years

rr_AverageAnnualReturnYear05

2.12%

10 Years

rr_AverageAnnualReturnYear10

3.68%

Delaware Tax-Free California II Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.99%

5 Years

rr_AverageAnnualReturnYear05

2.34%

10 Years

rr_AverageAnnualReturnYear10

3.63%

Delaware Tax-Free California II Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FICJX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.41%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.96%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.32%)

^[10]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.64%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 65

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

240

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

467

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,118

1 Year

rr_AverageAnnualReturnYear01

7.73%

5 Years

rr_AverageAnnualReturnYear05

3.27%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

3.25%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free California II Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FICLX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.39%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.94%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.29%)

^[10]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.65%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 66

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

240

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

462

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,100

1 Year

rr_AverageAnnualReturnYear01

7.73%

5 Years

rr_AverageAnnualReturnYear05

3.20%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

3.25%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free New Jersey Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Free New Jersey Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Free New Jersey Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of New Jersey.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 47% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

47.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, at least 80% of the Fund’s net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of New Jersey (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in New Jersey and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, at least 80% of the Fund’s net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of New Jersey (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Free New Jersey Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors New Jersey Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.09% for the quarter ended Sept. 30, 2011, and its lowest quarterly return was -5.03% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free New Jersey Fund | Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.54%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.53%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.34%

^[8]

Delaware Tax-Free New Jersey Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[8]

Delaware Tax-Free New Jersey Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FINJX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.39%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.19%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.29%)

^[11]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.90%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 538

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

755

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,020

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,778

Annual Return 2010

rr_AnnualReturn2010

0.44%

Annual Return 2011

rr_AnnualReturn2011

10.60%

Annual Return 2012

rr_AnnualReturn2012

6.52%

Annual Return 2013

rr_AnnualReturn2013

(4.31%)

Annual Return 2014

rr_AnnualReturn2014

8.78%

Annual Return 2015

rr_AnnualReturn2015

2.16%

Annual Return 2016

rr_AnnualReturn2016

0.61%

Annual Return 2017

rr_AnnualReturn2017

4.13%

Annual Return 2018

rr_AnnualReturn2018

0.29%

Annual Return 2019

rr_AnnualReturn2019

6.68%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.09%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.03%)

1 Year

rr_AverageAnnualReturnYear01

2.38%

5 Years

rr_AverageAnnualReturnYear05

1.91%

10 Years

rr_AverageAnnualReturnYear10

3.08%

Delaware Tax-Free New Jersey Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.38%

5 Years

rr_AverageAnnualReturnYear05

1.91%

10 Years

rr_AverageAnnualReturnYear10

3.08%

Delaware Tax-Free New Jersey Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.50%

5 Years

rr_AverageAnnualReturnYear05

2.19%

10 Years

rr_AverageAnnualReturnYear10

3.17%

Delaware Tax-Free New Jersey Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FINLX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.39%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.94%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.26%)

^[11]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.68%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 69

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

246

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

468

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,106

1 Year

rr_AverageAnnualReturnYear01

7.00%

5 Years

rr_AverageAnnualReturnYear05

3.04%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.64%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free New Jersey Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FINNX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.38%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.93%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.27%)

^[11]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.66%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

241

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

460

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,092

1 Year

rr_AverageAnnualReturnYear01

7.07%

5 Years

rr_AverageAnnualReturnYear05

3.00%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.63%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free New York II Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Free New York II Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Free New York II Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of New York.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds^® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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 27% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

27.00%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from New York state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in New York and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal securities the income from which is exempt from federal income tax, including the federal alternative minimum tax, and from New York state personal income taxes. This is a fundamental investment policy that may not be changed without prior shareholder approval (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as education) will decline because of changing expectations for the performance of that industry or sector.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Free New York II Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors New York Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 3.85% for the quarter ended June 30, 2011, and its lowest quarterly return was -5.11% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free New York II Fund | Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.54%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.53%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.34%

^[8]

Delaware Tax-Free New York II Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[8]

Delaware Tax-Free New York II Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FNYFX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.20%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.00%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.14%)

^[12]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.86%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 534

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

727

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

951

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,595

Annual Return 2010

rr_AnnualReturn2010

0.79%

Annual Return 2011

rr_AnnualReturn2011

10.54%

Annual Return 2012

rr_AnnualReturn2012

6.55%

Annual Return 2013

rr_AnnualReturn2013

(3.78%)

Annual Return 2014

rr_AnnualReturn2014

8.96%

Annual Return 2015

rr_AnnualReturn2015

2.76%

Annual Return 2016

rr_AnnualReturn2016

0.22%

Annual Return 2017

rr_AnnualReturn2017

3.27%

Annual Return 2018

rr_AnnualReturn2018

none

Annual Return 2019

rr_AnnualReturn2019

7.42%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

3.85%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.11%)

1 Year

rr_AverageAnnualReturnYear01

3.14%

5 Years

rr_AverageAnnualReturnYear05

1.86%

10 Years

rr_AverageAnnualReturnYear10

3.16%

Delaware Tax-Free New York II Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

3.14%

5 Years

rr_AverageAnnualReturnYear05

1.86%

10 Years

rr_AverageAnnualReturnYear10

3.16%

Delaware Tax-Free New York II Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

2.98%

5 Years

rr_AverageAnnualReturnYear05

2.18%

10 Years

rr_AverageAnnualReturnYear10

3.25%

Delaware Tax-Free New York II Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FNYHX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.20%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.75%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.15%)

^[12]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.60%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 61

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

209

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

387

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 901

1 Year

rr_AverageAnnualReturnYear01

7.68%

5 Years

rr_AverageAnnualReturnYear05

3.01%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.74%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free New York II Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FNYJX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.20%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.75%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.13%)

^[12]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.62%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 63

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

213

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

391

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 905

1 Year

rr_AverageAnnualReturnYear01

7.68%

5 Years

rr_AverageAnnualReturnYear05

2.95%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.74%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free Oregon Fund

Risk/Return:

dglt_RiskReturn1Abstract

Risk/Return

rr_RiskReturnHeading

Delaware Tax-Free Oregon Fund

Objective

rr_ObjectiveHeading

What is the Fund’s investment objective?

Objective, Primary

rr_ObjectivePrimaryTextBlock

Delaware Tax-Free Oregon Fund seeks a high level of interest income that is exempt from both federal and state income tax for individual residents of the state of Oregon.

Expense

rr_ExpenseHeading

What are the Fund’s fees and expenses?

Expense Narrative

rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie. More information about these and other discounts is available from your financial intermediary, in the Fund’s Prospectus under the section entitled “About your account,” and in the Fund’s statement of additional information (SAI) under the section entitled “Purchasing Shares.”

Shareholder Fees Caption

rr_ShareholderFeesCaption

Shareholder fees (fees paid directly from your investment)

Operating Expenses Caption

rr_OperatingExpensesCaption

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

Portfolio Turnover Heading

rr_PortfolioTurnoverHeading

Portfolio turnover

Portfolio Turnover

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 the 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%

Expense Breakpoint Discounts

rr_ExpenseBreakpointDiscounts

You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Delaware Funds® by Macquarie.

Expense Breakpoint, Minimum Investment Required

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 100,000

Expense Example

rr_ExpenseExampleHeading

Example

Expense Example Narrative

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 2-year contractual period and the total operating expenses without waivers for years 3 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy

rr_StrategyHeading

What are the Fund’s principal investment strategies?

Strategy Narrative

rr_StrategyNarrativeTextBlock

Under normal circumstances, at least 80% of the Fund's net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of Oregon (80% policy). However, the Fund typically attempts to invest all of its assets in securities that pay interest that is exempt from federal income tax and state income tax for individual residents of such state, but may invest up to 20% of its net assets in securities that pay interest that is subject to the federal alternative minimum tax. Such securities include obligations issued by municipalities and other authorities in Oregon and US possessions and territories. In certain cases, dividends paid by the Fund may also be exempt from local personal income taxes.

The Fund primarily invests in high quality municipal securities that are rated as, or, if unrated, are determined by the Manager to be, investment grade at the time of purchase. The Fund may invest in securities insured against default by independent insurance companies and revenue bonds. The Fund may also invest in variable and floating rate securities, as well as interest rate swaps, futures and options on futures to hedge against interest rate changes and inverse floaters to produce income.

To a lesser extent, the Fund may invest in high yield, below investment grade municipal bonds (commonly known as “high yield” or “junk bonds”). High yield bonds include those that are rated below Baa3 by Moody’s Investors Service, Inc. or below BBB- by Standard & Poor’s and unrated bonds that are determined by the Manager to be of equivalent quality. When making investment decisions, the Manager focuses on bonds that it believes can generate attractive and consistent income.

In selecting investments for the Fund, the Manager considers various factors, including: a security’s maturity, coupon, yield, credit quality, call protection and relative value and the outlook for interest rates and the economy. The Manager may sell a security for various reasons, including to replace it with a security that offers a higher yield or better value, respond to a deterioration in credit quality, or raise cash. The Manager generally considers any capital gains or losses that may be incurred upon the sale of an investment. In addition, the Manager considers the duration of the Fund’s portfolio when deciding whether to buy or sell a security.

The Fund will generally have a dollar-weighted average effective maturity of between 5 and 30 years.

Strategy Portfolio Concentration

rr_StrategyPortfolioConcentration

Under normal circumstances, at least 80% of the Fund's net assets (plus any borrowings for investment purposes) will be invested in municipal securities that pay interest that is exempt from federal income tax, including the federal alternative minimum tax, and any applicable state income tax for individual residents of the state of Oregon (80% policy).

Risk

rr_RiskHeading

What are the principal risks of investing in the Fund?

Risk Narrative

rr_RiskNarrativeTextBlock

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. The Fund’s principal risks include:

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance. For example, a tax-exempt security may be reclassified by the Internal Revenue Service or a state tax authority as taxable, and/or future legislative, administrative, or court actions could cause interest from a tax-exempt security to become taxable, possibly retroactively.

Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.

Call risk — The risk that a bond issuer will prepay the bond during periods of low interest rates, forcing a fund to reinvest that money at interest rates that might be lower than rates on the called bond.

Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates due to the current period of historically low interest rates.

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Geographic concentration risk — The risk that heightened sensitivity to regional, state, US territories or possessions (such as the Commonwealth of Puerto Rico, Guam, or the US Virgin Islands), and local political and economic conditions could adversely affect the holdings in and performance of a fund. There is also the risk that there could be an inadequate supply of municipal bonds in a particular state or US territory or possession.

High yield (junk bond) risk — The risk that high yield securities, commonly known as “junk bonds,” are subject to reduced creditworthiness of issuers, increased risk of default, and a more limited and less liquid secondary market. High yield securities may also be subject to greater price volatility and risk of loss of income and principal than are higher-rated securities. High yield bonds are sometimes issued by municipalities that have less financial strength and therefore have less ability to make projected debt payments on the bonds.

Alternative minimum tax risk — If a fund invests in bonds whose income is subject to the alternative minimum tax, that portion of the fund’s distributions would be taxable for shareholders who are subject to this tax.

LIBOR risk — The risk that potential changes related to the use of the London Interbank Offered Rate (LIBOR) could have adverse impacts on financial instruments which reference LIBOR. While some instruments may contemplate a scenario where LIBOR is no longer available by providing for an alternative rate setting methodology, not all instruments have such fallback provisions and the effectiveness of replacement rates is uncertain. The potential abandonment of LIBOR could affect the value and liquidity of instruments which reference LIBOR, especially those that do not have fallback provisions.

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

The Manager is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). Other than Macquarie Bank Limited (MBL), a subsidiary of MGL and an affiliate of the Manager, none of the entities noted are authorized deposit-taking institutions for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of these entities do not represent deposits or other liabilities of MBL. MBL does not guarantee or otherwise provide assurance in respect of the obligations of these entities, unless noted otherwise. The Fund is governed by US laws and regulations.

Risk Lose Money

rr_RiskLoseMoney

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio.

Bar Chart and Performance Table

rr_BarChartAndPerformanceTableHeading

How has Delaware Tax-Free Oregon Fund performed?

Performance Narrative

rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund. The Fund adopted the performance of the First Investors Oregon Tax Exempt Fund (Predecessor Fund) as the result of a reorganization of the Predecessor Fund into the Fund, which was consummated after the close of business on Oct. 4, 2019 (Reorganization). The Fund had not yet commenced operations prior to the Reorganization. The bar chart shows changes in performance from year to year and shows how average annual total returns for the 1-, 5-, and 10-year or lifetime periods compare with those of a broad measure of market performance. The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps.

The returns shown for periods ending on or prior to Oct. 4, 2019 reflect the performance and expenses of the Predecessor Fund. The Predecessor Fund was reorganized into the Fund after the close of business on Oct. 4, 2019. The returns shown for periods after Oct. 4, 2019 reflect the performance and expenses of the Fund.

You may obtain the Fund’s most recently available month-end performance by calling 800 523-1918 or by visiting our website at delawarefunds.com/performance.

Performance Availability Phone

rr_PerformanceAvailabilityPhone

800 523-1918

Performance Availability Website Address

rr_PerformanceAvailabilityWebSiteAddress

delawarefunds.com/performance

Performance Past Does Not Indicate Future

rr_PerformancePastDoesNotIndicateFuture

The past performance shown (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Bar Chart Heading

rr_BarChartHeading

Calendar year-by-year total return (Class A)

Bar Chart Closing

rr_BarChartClosingTextBlock

During the periods illustrated in this bar chart, Class A’s highest quarterly return was 4.21% for the quarter ended Sept. 30, 2010, and its lowest quarterly return was -5.78% for the quarter ended Dec. 31, 2010. The maximum Class A sales charge of 4.50%, which is normally deducted when you purchase shares, is not reflected in the highest/lowest quarterly returns or in the bar chart. If this fee were included, the returns would be less than those shown. The average annual total returns in the table below do include the sales charge.

Performance Table Heading

rr_PerformanceTableHeading

Average annual total returns for periods ended December 31, 2019

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs).

Performance Table One Class of after Tax Shown

rr_PerformanceTableOneClassOfAfterTaxShown

After-tax performance is presented only for Class A shares of the Fund.

Performance Table Closing

rr_PerformanceTableClosingTextBlock

After-tax performance is presented only for Class A shares of the Fund. The after-tax returns for other Fund classes may vary. Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.

Delaware Tax-Free Oregon Fund | Bloomberg Barclays Municipal Bond Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.54%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.53%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.34%

^[8]

Delaware Tax-Free Oregon Fund | ICE Bofa US Municipal Securities Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

dglt_RiskReturn1Abstract

Index No Deduction for Fees, Expenses, Taxes

rr_IndexNoDeductionForFeesExpensesTaxes

Reflects no deduction for fees, expenses or taxes.

1 Year

rr_AverageAnnualReturnYear01

7.74%

^[8]

5 Years

rr_AverageAnnualReturnYear05

3.60%

^[8]

10 Years

rr_AverageAnnualReturnYear10

4.49%

^[8]

Delaware Tax-Free Oregon Fund | Class A

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FTORX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

4.50%

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Other expenses

rr_OtherExpensesOverAssets

0.36%

Total annual fund operating expenses

rr_ExpensesOverAssets

1.16%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.25%)

^[13]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.91%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 539

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

753

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,012

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,752

Annual Return 2010

rr_AnnualReturn2010

0.58%

Annual Return 2011

rr_AnnualReturn2011

11.24%

Annual Return 2012

rr_AnnualReturn2012

6.51%

Annual Return 2013

rr_AnnualReturn2013

(5.08%)

Annual Return 2014

rr_AnnualReturn2014

9.06%

Annual Return 2015

rr_AnnualReturn2015

2.39%

Annual Return 2016

rr_AnnualReturn2016

(0.03%)

Annual Return 2017

rr_AnnualReturn2017

3.70%

Annual Return 2018

rr_AnnualReturn2018

(0.04%)

Annual Return 2019

rr_AnnualReturn2019

5.78%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Sep. 30, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

4.21%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Dec. 31, 2010

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(5.78%)

1 Year

rr_AverageAnnualReturnYear01

1.57%

5 Years

rr_AverageAnnualReturnYear05

1.51%

10 Years

rr_AverageAnnualReturnYear10

2.90%

Delaware Tax-Free Oregon Fund | Class A | After Taxes on Distributions

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

1.57%

5 Years

rr_AverageAnnualReturnYear05

1.51%

10 Years

rr_AverageAnnualReturnYear10

2.89%

Delaware Tax-Free Oregon Fund | Class A | After Taxes on Distributions and Sales

Risk/Return:

dglt_RiskReturn1Abstract

1 Year

rr_AverageAnnualReturnYear01

1.95%

5 Years

rr_AverageAnnualReturnYear05

1.82%

10 Years

rr_AverageAnnualReturnYear10

2.95%

Delaware Tax-Free Oregon Fund | Institutional Class

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FTOTX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.36%

Total annual fund operating expenses

rr_ExpensesOverAssets

0.91%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.25%)

^[13]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.66%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 67

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

239

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

454

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,072

1 Year

rr_AverageAnnualReturnYear01

6.03%

5 Years

rr_AverageAnnualReturnYear05

2.65%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

Delaware Tax-Free Oregon Fund | Class R6

Risk/Return:

dglt_RiskReturn1Abstract

Trading Symbol

dei_TradingSymbol

FTOUX

Maximum sales charge (load) imposed on purchases as a percentage of offering price

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum contingent deferred sales charge (load) as a percentage of original purchase price or redemption price, whichever is lower

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Management fees

rr_ManagementFeesOverAssets

0.55%

Distribution and service (12b-1) fees

rr_DistributionAndService12b1FeesOverAssets

none

Other expenses

rr_OtherExpensesOverAssets

0.35%

^[7]

Total annual fund operating expenses

rr_ExpensesOverAssets

0.90%

Fee waivers and expense reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.23%)

^[13]

Total annual fund operating expenses after fee waivers and expense reimbursements

rr_NetExpensesOverAssets

0.67%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

$ 68

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

240

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

452

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

$ 1,064

1 Year

rr_AverageAnnualReturnYear01

6.05%

5 Years

rr_AverageAnnualReturnYear05

2.59%

10 years or lifetime

rr_AverageAnnualReturnSinceInception

2.27%

Inception Date

rr_AverageAnnualReturnInceptionDate

May 01, 2013

[1] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any 12b-1 fees, acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.39% of the Fund's average daily net assets from April 29, 2020 through April 30, 2021 for all share classes other than R6, and 0.32% of the Fund's Class R6 shares' average daily net assets from April 29, 2020 through April 30, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund. Additionally, the Fund's distributor, Delaware Distributors, L.P. (Distributor), has contracted to limit the Fund's Class A shares' 12b-1 fees to no more than 0.15% of average daily net assets from April 29, 2020 through April 30, 2021. This waiver may be terminated only by agreement of the Distributor and the Fund.

[2] Class C shares redeemed within one year of purchase are subject to a 1.00% contingent deferred sales charge (CDSC).

[3] "Other expenses" account for Class R6 shares not being subject to certain expenses as described further in the section of the Prospectus entitled "Choosing a share class."

[4] The Fund changed its primary broad-based securities index to the Bloomberg Barclays 3-15 Year Blend Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflects the Fund's investment strategies.

[5] The Fund's distributor, Delaware Distributors, L.P. (Distributor), has contracted to limit the Class A shares' 12b-1 fees to no more than 0.15% of average daily net assets from Oct. 4, 2019 through Oct. 31, 2021. This waiver may be terminated only by agreement of the Distributor and the Fund.

[6] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.92%, 0.70% and 0.62% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, from Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[7] "Other expenses" for Class R6 are estimated and account for Class R6 shares not being subject to certain expenses as described further in the section of this Prospectus entitled "Choosing a share class."

[8] The Fund changed its broad-based securities index to the Bloomberg Barclays Municipal Bond Index as of Oct. 4, 2019. The Fund elected to use the new index because it more closely reflected the Fund's investment strategies.

[9] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.95%, 0.66% and 0.65% of the Fund's average daily net assets for Class A shares, Institutional Class and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[10] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.92%, 0.64% and 0.65% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[11] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.90%, 0.68% and 0.66% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[12] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.86%, 0.60% and 0.62% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

[13] The Fund's investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.91%, 0.66% and 0.67% of the Fund's average daily net assets for Class A shares, Institutional Class shares and Class R6 shares, respectively, of the Fund's average daily net assets Oct. 4, 2019 through Oct. 31, 2021. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

XML

Document and Entity Information	Total
Risk/Return:
Registrant Name	DELAWARE GROUP LIMITED-TERM GOVERNMENT FUNDS
Document Type	497
Document Period End Date	Dec. 31, 2019
Amendment Flag	false
Central Index Key	0000357059
Document Effective Date	May 04, 2020
Document Creation Date	May 04, 2020
Prospectus Date	Apr. 29, 2020
Entity Inv Company Type	N-1A
Delaware Limited-Term Diversified Income Fund | Class A
Risk/Return:
Trading Symbol	DTRIX
Delaware Limited-Term Diversified Income Fund | Class C
Risk/Return:
Trading Symbol	DTICX
Delaware Limited-Term Diversified Income Fund | Class R
Risk/Return:
Trading Symbol	DLTRX
Delaware Limited-Term Diversified Income Fund | Institutional Class
Risk/Return:
Trading Symbol	DTINX
Delaware Limited-Term Diversified Income Fund | Class R6
Risk/Return:
Trading Symbol	DLTZX
Delaware Tax-Exempt Income Fund | Class A
Risk/Return:
Trading Symbol	FITAX
Delaware Tax-Exempt Income Fund | Institutional Class
Risk/Return:
Trading Symbol	FITDX
Delaware Tax-Exempt Income Fund | Class R6
Risk/Return:
Trading Symbol	FITEX
Delaware Tax-Exempt Opportunities Fund | Class A
Risk/Return:
Trading Symbol	EIITX
Delaware Tax-Exempt Opportunities Fund | Institutional Class
Risk/Return:
Trading Symbol	EIIAX
Delaware Tax-Exempt Opportunities Fund | Class R6
Risk/Return:
Trading Symbol	EIINX
Delaware Tax-Free California II Fund | Class A
Risk/Return:
Trading Symbol	FICAX
Delaware Tax-Free California II Fund | Institutional Class
Risk/Return:
Trading Symbol	FICJX
Delaware Tax-Free California II Fund | Class R6
Risk/Return:
Trading Symbol	FICLX
Delaware Tax-Free New Jersey Fund | Class A
Risk/Return:
Trading Symbol	FINJX
Delaware Tax-Free New Jersey Fund | Institutional Class
Risk/Return:
Trading Symbol	FINLX
Delaware Tax-Free New Jersey Fund | Class R6
Risk/Return:
Trading Symbol	FINNX
Delaware Tax-Free New York II Fund | Class A
Risk/Return:
Trading Symbol	FNYFX
Delaware Tax-Free New York II Fund | Institutional Class
Risk/Return:
Trading Symbol	FNYHX
Delaware Tax-Free New York II Fund | Class R6
Risk/Return:
Trading Symbol	FNYJX
Delaware Tax-Free Oregon Fund | Class A
Risk/Return:
Trading Symbol	FTORX
Delaware Tax-Free Oregon Fund | Institutional Class
Risk/Return:
Trading Symbol	FTOTX
Delaware Tax-Free Oregon Fund | Class R6
Risk/Return:
Trading Symbol	FTOUX