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Document and Entity Information

v3.9.0.1
Document and Entity Information
Total
Document and Entity Information:  
EntityRegistrantName Delaware Group Equity Funds IV
DocumentType 485BPOS
DocumentPeriodEndDate Mar. 31, 2018
AmendmentFlag false
EntityCentralIndexKey 0000778108
DocumentEffectiveDate Jul. 27, 2018
DocumentCreationDate Jul. 26, 2018
Delaware Smid Cap Growth Fund | Class A  
Document and Entity Information:  
TradingSymbol DFCIX
Delaware Smid Cap Growth Fund | Class C  
Document and Entity Information:  
TradingSymbol DEEVX
Delaware Smid Cap Growth Fund | Class R  
Document and Entity Information:  
TradingSymbol DFRIX
Delaware Smid Cap Growth Fund | Institutional Class  
Document and Entity Information:  
TradingSymbol DFDIX
Delaware Smid Cap Growth Fund | Class R6  
Document and Entity Information:  
TradingSymbol DFZRX
Delaware Healthcare Fund | Class A  
Document and Entity Information:  
TradingSymbol DLHAX
Delaware Healthcare Fund | Class C  
Document and Entity Information:  
TradingSymbol DLHCX
Delaware Healthcare Fund | Class R  
Document and Entity Information:  
TradingSymbol DLRHX
Delaware Healthcare Fund | Institutional Class  
Document and Entity Information:  
TradingSymbol DLHIX
Delaware Small Cap Growth Fund | Class A  
Document and Entity Information:  
TradingSymbol DSGDX
Delaware Small Cap Growth Fund | Class C  
Document and Entity Information:  
TradingSymbol DSGEX
Delaware Small Cap Growth Fund | Class R  
Document and Entity Information:  
TradingSymbol DSGFX
Delaware Small Cap Growth Fund | Institutional Class  
Document and Entity Information:  
TradingSymbol DSGGX

Risk/Return Summary

v3.9.0.1
Delaware Smid Cap Growth Fund
Delaware Smid Cap Growth Fund
What is the Fund’s investment objective?

Delaware Smid Cap Growth Fund seeks long-term capital appreciation.

 

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 $50,000 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 Smid Cap Growth Fund
Class A
Class C
Class R
Institutional Class
Class R6
Maximum sales charge (load) imposed on purchases as a percentage of offering price 5.75% 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
[1] Class C shares redeemed within one year of purchase are subject to a 1.00% contingent deferred sales charge (CDSC).
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses - Delaware Smid Cap Growth Fund
Class A
Class C
Class R
Institutional Class
Class R6
Management fees 0.73% 0.73% 0.73% 0.73% 0.73%
Distribution and service (12b-1) fees 0.25% [1] 1.00% 0.50% none none
Other expenses 0.19% 0.19% 0.19% 0.19% 0.11% [2]
Total annual fund operating expenses 1.17% 1.92% 1.42% 0.92% 0.84%
[1] The Fund’s Class A shares are subject to a blended 12b-1 fee of 0.10% on all shares acquired prior to June 1, 1992 and 0.25% on all shares acquired on or after June 1, 1992. This method of calculating Class A 12b-1 fees may be discontinued at the sole discretion of the Fund's Board of Trustees.
[2] “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.”
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 that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 

Expense Example - Delaware Smid Cap Growth Fund - USD ($)
Expense Example, with Redemption, 1 Year
Expense Example, with Redemption, 3 Years
Expense Example, with Redemption, 5 Years
Expense Example, with Redemption, 10 Years
Class A 687 925 1,182 1,914
Class C 295 603 1,037 2,243
Class R 145 449 776 1,702
Institutional Class 94 293 509 1,131
Class R6 86 268 466 1,037
Expense Example, No Redemption
Expense Example, No Redemption, 1 Year
Expense Example, No Redemption, 3 Years
Expense Example, No Redemption, 5 Years
Expense Example, No Redemption, 10 Years
Delaware Smid Cap Growth Fund | Class C | USD ($) 195 603 1,037 2,243
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 101% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small- and mid-capitalization companies (80% policy). For purposes of this Fund, small and mid-market capitalization companies are those companies whose market capitalization is similar to the market capitalization of companies in the Russell 2500 Growth Index. The index listed above is used for purposes of determining range and not for targeting portfolio management. As of June 30, 2018, the Russell 2500 Growth Index had a market capitalization range between $51 million and $14.5 billion. The market capitalization range for the Russell 2500 Growth Index will change on a periodic basis. A company’s market capitalization is determined based on its current market capitalization. Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company. The Fund may invest in a limited number of stocks.

Using a top-down thematic overlay combined with bottom-up, fundamental research, the Manager seeks to identify early stage major demand trends and invest in securities of competitively advantaged companies that the Manager believes should benefit from these trends. The Manager focuses on earnings growth as the Manager believes earnings growth drives stock prices and the companies with the strongest gains in profitability have the potential to enjoy share performance that exceeds the broad market averages, provided that the earnings are of high quality and likely to continue.

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. 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.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Limited number of stocks risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds.

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

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 Smid Cap Growth 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.

 

Effective Jan. 21, 2010, the Fund transitioned to invest primarily in common stocks of small- to medium-sized, growth-oriented companies, as described above. Prior to this time, the Fund invested primarily in stocks of medium-sized companies whose total market capitalization at the time of investment was within the range of the Russell Midcap Growth Index. The returns reflected in the bar chart may not be indicative of future performance.

 

Calendar year-by-year total return (Class A)*
Bar Chart

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 17.48%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 17.93% for the quarter ended Dec. 31, 2017, and its lowest quarterly return was -25.85% for the quarter ended Dec. 31, 2008. The maximum Class A sales charge of 5.75%, 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, 2017*
Average Annual Total Returns - Delaware Smid Cap Growth Fund
Label
1 year
5 years
10 years
Lifetime
Russell 2500™ Growth Index (reflects no deduction for fees, expenses, or taxes)   24.46% 15.47% 9.62%  
Class A   27.39% 13.56% 9.88%  
Class A | AfterTaxesOnDistributionsMember   26.95% 10.07% 7.59%  
Class A | AfterTaxesOnDistributionsAndSalesMember   15.82% 10.19% 7.54%  
Class C   33.14% 14.06% 9.70%  
Class R   34.77% 14.62% 10.27%  
Institutional Class   35.45% 15.20% 10.82%  
Class R6 return before taxes (lifetime: 5/2/16 – 12/31/17) 35.61%   15.89%
*      Prior to June 30, 2016, the Fund was sub-advised by Jackson Square Partners, LLC. Since June 30, 2016, the Fund has been managed by a portfolio manager within Delaware Management Company. The average annual total returns for the 5-year and 10-year periods do not reflect this change to the Fund's portfolio management.

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 Healthcare Fund
Delaware Healthcare Fund
What is the Fund’s investment objective?

Delaware Healthcare Fund seeks maximum long-term capital growth through capital appreciation.

 

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 $50,000 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 Healthcare Fund
Class A
Class C
Class R
Institutional Class
Maximum sales charge (load) imposed on purchases as a percentage of offering price 5.75% 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
[1] Class C shares redeemed within one year of purchase are subject to a 1.00% contingent deferred sales charge (CDSC).
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses - Delaware Healthcare Fund
Class A
Class C
Class R
Institutional Class
Management fees 0.85% 0.85% 0.85% 0.85%
Distribution and service (12b-1) fees 0.25% 1.00% 0.50% none
Other expenses 0.21% 0.21% 0.21% 0.21%
Total annual fund operating expenses 1.31% 2.06% 1.56% 1.06%
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 that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 

Expense Example - Delaware Healthcare Fund - USD ($)
Expense Example, with Redemption, 1 Year
Expense Example, with Redemption, 3 Years
Expense Example, with Redemption, 5 Years
Expense Example, with Redemption, 10 Years
Class A 701 966 1,252 2,063
Class C 309 646 1,108 2,390
Class R 159 493 850 1,856
Institutional Class 108 337 585 1,294
Expense Example, No Redemption
Expense Example, No Redemption, 1 Year
Expense Example, No Redemption, 3 Years
Expense Example, No Redemption, 5 Years
Expense Example, No Redemption, 10 Years
Delaware Healthcare Fund | Class C | USD ($) 209 646 1,108 2,390
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 28% 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 assets, plus the amount of any borrowings for investment purposes, in the equity securities of healthcare companies, meaning companies that develop, produce, or distribute products or services related to the healthcare or medical industries and derive a substantial portion, that is, more than 50%, of their sales from products and services in the healthcare industry (80% policy). These products and services include, but are not limited to, pharmaceutical companies, biotechnology companies, medical device and supply companies, managed care companies, and healthcare information and service providers. The Fund invests in US and non-US companies across all market capitalizations. The Fund may invest up to 50% of its total assets in non-US companies. The Fund may also invest up to 25% of its total assets in companies located in emerging markets. The Fund is a nondiversified fund.

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. 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.

Healthcare sector risk — The risk that the value of a fund’s shares will be affected by factors particular to the healthcare and related sectors (such as government regulation) and may fluctuate more widely than that of a fund that invests in a broad range of sectors.

Foreign and emerging markets 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. The risk associated with international investing will be greater in emerging markets than in more developed foreign markets because, among other things, emerging markets may have less stable political and economic environments. In addition, there often is substantially less publicly available information about issuers and such information tends to be of a lesser quality. Economic markets and structures tend to be less mature and diverse and the securities markets may also be smaller, less liquid, and subject to greater price volatility.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Nondiversification risk — A nondiversified fund has the flexibility to invest as much as 50% of its assets in as few as two issuers with no single issuer accounting for more than 25% of the fund. The remaining 50% of its assets must be diversified so that no more than 5% of its assets are invested in the securities of a single issuer. Because a nondiversified fund may invest its assets in fewer issuers, the value of its shares may increase or decrease more rapidly than if it were fully diversified.

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

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.

 

Delaware Management Company (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 Healthcare 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)
Bar Chart

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 9.87%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 22.95% for the quarter ended Sept. 30, 2009, and its lowest quarterly return was -15.99% for the quarter ended Sept. 30, 2011. The maximum Class A sales charge of 5.75%, 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, 2017
Average Annual Total Returns - Delaware Healthcare Fund
Label
1 year
5 years
10 years
Lifetime
Russell 3000® Healthcare Index (reflects no deduction for fees, expenses, or taxes)   23.13% 17.99% 11.60%  
Class A   24.35% 18.51% 16.64%  
Class A | AfterTaxesOnDistributionsMember   23.09% 16.51% 14.57%  
Class A | AfterTaxesOnDistributionsAndSalesMember   14.11% 14.40% 13.11%  
Class C return before taxes (lifetime: 01/28/10–12/31/17) 30.03% 19.03%   16.20%
Class R return before taxes (lifetime: 01/28/10–12/31/17) 31.65% 19.63%   16.77%
Institutional Class   32.32% 20.21% 17.56%  
Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company.

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 Small Cap Growth Fund
Delaware Small Cap Growth Fund
What is the Fund’s investment objective?

Delaware Small Cap Growth Fund seeks long-term capital appreciation.

 

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 $50,000 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 Small Cap Growth Fund
Class A
Class C
Class R
Institutional Class
Maximum sales charge (load) imposed on purchases as a percentage of offering price 5.75% 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
[1] Class C shares redeemed within one year of purchase are subject to a 1.00% contingent deferred sales charge (CDSC).
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses - Delaware Small Cap Growth Fund
Class A
Class C
Class R
Institutional Class
Management fees 0.75% 0.75% 0.75% 0.75%
Distribution and service (12b-1) fees 0.25% 1.00% 0.50% none
Other expenses 2.33% 2.33% 2.33% 2.33%
Total annual fund operating expenses 3.33% 4.08% 3.58% 3.08%
Fee waivers and expense reimbursements [1] (2.03%) (2.03%) (2.03%) (2.03%)
Total annual fund operating expenses after fee waivers and expense reimbursements 1.30% 2.05% 1.55% 1.05%
[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 1.05% of the Fund’s average daily net assets from July 27, 2018 through July 29, 2019. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.
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 Manager’s expense 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 Small Cap Growth Fund - USD ($)
Expense Example, with Redemption, 1 Year
Expense Example, with Redemption, 3 Years
Expense Example, with Redemption, 5 Years
Expense Example, with Redemption, 10 Years
Class A 700 1,362 2,046 3,859
Class C 308 1,056 1,919 4,149
Class R 158 909 1,682 3,712
Institutional Class 107 760 1,438 3,250
Expense Example, No Redemption
Expense Example, No Redemption, 1 Year
Expense Example, No Redemption, 3 Years
Expense Example, No Redemption, 5 Years
Expense Example, No Redemption, 10 Years
Delaware Small Cap Growth Fund | Class C | USD ($) 208 1,056 1,919 4,149
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 was 151% of the average value of its portfolio.

What are the Fund’s principal investment strategies?

The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small-capitalization companies (80% policy). The Fund may invest in both domestic and foreign small-capitalization companies. For purposes of this Fund, small-market capitalization companies are those companies whose market capitalization is similar to the market capitalization of companies in the Russell 2000® Growth Index. The Index is used for purposes of determining range and not for targeting portfolio management. As of June 30, 2018, the Russell 2000 Growth Index had a market capitalization range between $51 million and $6.7 billion. The market capitalization range for the Russell 2000 Growth Index will change on a periodic basis. A company’s market capitalization is determined based on its current market capitalization. Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company.

Using a top-down thematic overlay combined with bottom-up, fundamental research, the Manager seeks to identify early stage major demand trends and invest in securities of competitively advantaged companies that it believes should benefit from these trends. The Manager focuses on earnings growth as it believes earnings growth drives stock prices and the companies with the strongest gains in profitability have the potential to enjoy share performance that exceeds the broad market averages, provided that the earnings are of high quality and likely to continue.

Under normal circumstances, the Fund generally holds 30 to 40 stocks, although from time to time the Fund may hold more or fewer names depending on the Manager’s assessment of the investment opportunities available.

The Manager may use futures and options to seek to protect unrealized gains in the Fund’s portfolio when the Manager anticipates adverse conditions; to neutralize the effect of any price declines, without selling a security; and to gain exposure to a particular market segment without purchasing individual securities in that segment.

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. 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.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Limited number of stocks risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds.

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.

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 a 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).

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.

 

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 Small Cap Growth 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-year and 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)
Bar Chart

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 18.83%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 19.40% for the quarter ended Dec. 31, 2017, and its lowest quarterly return was 3.31% for the quarter ended Sept. 30, 2017. The maximum Class A sales charge of 5.75%, 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, 2017
Average Annual Total Returns - Delaware Small Cap Growth Fund
Label
1 year
Lifetime
Russell 2000 Growth Index (reflects no deduction for fees, expenses, or taxes) Lifetime (6/30/16 – 12/31/17) 22.17% 24.00%
Class A   26.76% 23.51%
Class A | AfterTaxesOnDistributionsMember Lifetime (6/30/16 – 12/31/17) 23.20% 19.90%
Class A | AfterTaxesOnDistributionsAndSalesMember Lifetime (6/30/16 – 12/31/17) 15.01% 16.28%
Class C Lifetime (6/30/16 – 12/31/17) 32.34% 27.48%
Class R Lifetime (6/30/16 – 12/31/17) 34.06% 28.13%
Institutional Class Lifetime (6/30/16 – 12/31/17) 34.62% 28.76%

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.

 

 


Risk/Return Detail Data

v3.9.0.1
Label Element Value
RiskReturnAbstract rr_RiskReturnAbstract  
DocumentType dei_DocumentType 485BPOS
DocumentPeriodEndDate dei_DocumentPeriodEndDate Mar. 31, 2018
EntityRegistrantName dei_EntityRegistrantName Delaware Group Equity Funds IV
EntityCentralIndexKey dei_EntityCentralIndexKey 0000778108
AmendmentFlag dei_AmendmentFlag false
DocumentCreationDate dei_DocumentCreationDate Jul. 26, 2018
DocumentEffectiveDate dei_DocumentEffectiveDate Jul. 27, 2018
ProspectusDate rr_ProspectusDate Jul. 27, 2018
Delaware Smid Cap Growth Fund  
RiskReturnAbstract rr_RiskReturnAbstract  
RiskReturnHeading rr_RiskReturnHeading Delaware Smid Cap Growth Fund
ObjectiveHeading rr_ObjectiveHeading What is the Fund’s investment objective?
ObjectivePrimaryTextBlock rr_ObjectivePrimaryTextBlock

Delaware Smid Cap Growth Fund seeks long-term capital appreciation.

 

ExpenseHeading rr_ExpenseHeading What are the Fund’s fees and expenses?
ExpenseNarrativeTextBlock rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in 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.”

 

ShareholderFeesCaption rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
OperatingExpensesCaption 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
PortfolioTurnoverTextBlock 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 101% of the average value of its portfolio.

PortfolioTurnoverRate rr_PortfolioTurnoverRate 101.00%
ExpenseBreakpointDiscounts rr_ExpenseBreakpointDiscounts You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Delaware Funds® by Macquarie.
ExpenseBreakpointMinimumInvestmentRequiredAmount rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
ExpenseExampleHeading rr_ExpenseExampleHeading Example
ExpenseExampleNarrativeTextBlock 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 that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 

StrategyHeading rr_StrategyHeading What are the Fund’s principal investment strategies?
StrategyNarrativeTextBlock rr_StrategyNarrativeTextBlock

The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small- and mid-capitalization companies (80% policy). For purposes of this Fund, small and mid-market capitalization companies are those companies whose market capitalization is similar to the market capitalization of companies in the Russell 2500 Growth Index. The index listed above is used for purposes of determining range and not for targeting portfolio management. As of June 30, 2018, the Russell 2500 Growth Index had a market capitalization range between $51 million and $14.5 billion. The market capitalization range for the Russell 2500 Growth Index will change on a periodic basis. A company’s market capitalization is determined based on its current market capitalization. Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company. The Fund may invest in a limited number of stocks.

Using a top-down thematic overlay combined with bottom-up, fundamental research, the Manager seeks to identify early stage major demand trends and invest in securities of competitively advantaged companies that the Manager believes should benefit from these trends. The Manager focuses on earnings growth as the Manager believes earnings growth drives stock prices and the companies with the strongest gains in profitability have the potential to enjoy share performance that exceeds the broad market averages, provided that the earnings are of high quality and likely to continue.

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.

StrategyPortfolioConcentration rr_StrategyPortfolioConcentration The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy.
RiskHeading rr_RiskHeading What are the principal risks of investing in the Fund?
RiskNarrativeTextBlock 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. 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.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Limited number of stocks risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds.

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

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.

 

RiskLoseMoney 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.
BarChartAndPerformanceTableHeading rr_BarChartAndPerformanceTableHeading How has Delaware Smid Cap Growth Fund performed?
PerformanceNarrativeTextBlock 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.

 

Effective Jan. 21, 2010, the Fund transitioned to invest primarily in common stocks of small- to medium-sized, growth-oriented companies, as described above. Prior to this time, the Fund invested primarily in stocks of medium-sized companies whose total market capitalization at the time of investment was within the range of the Russell Midcap Growth Index. The returns reflected in the bar chart may not be indicative of future performance.

 

PerformanceAvailabilityPhone rr_PerformanceAvailabilityPhone 800 523-1918
PerformanceAvailabilityWebSiteAddress rr_PerformanceAvailabilityWebSiteAddress delawarefunds.com/performance
PerformancePastDoesNotIndicateFuture 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)*
BarChartClosingTextBlock rr_BarChartClosingTextBlock

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 17.48%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 17.93% for the quarter ended Dec. 31, 2017, and its lowest quarterly return was -25.85% for the quarter ended Dec. 31, 2008. The maximum Class A sales charge of 5.75%, 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.

PerformanceTableHeading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2017*
PerformanceTableUsesHighestFederalRate 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.
PerformanceTableNotRelevantToTaxDeferred 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).
PerformanceTableOneClassOfAfterTaxShown rr_PerformanceTableOneClassOfAfterTaxShown After-tax performance is presented only for Class A shares of the Fund.
PerformanceTableFootnotesTextBlock rr_PerformanceTableFootnotesTextBlock *      Prior to June 30, 2016, the Fund was sub-advised by Jackson Square Partners, LLC. Since June 30, 2016, the Fund has been managed by a portfolio manager within Delaware Management Company. The average annual total returns for the 5-year and 10-year periods do not reflect this change to the Fund's portfolio management.
PerformanceTableClosingTextBlock 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 Smid Cap Growth Fund | Russell 2500™ Growth Index (reflects no deduction for fees, expenses, or taxes)  
RiskReturnAbstract rr_RiskReturnAbstract  
IndexNoDeductionForFeesExpensesTaxes rr_IndexNoDeductionForFeesExpensesTaxes Reflects no deduction for fees, expenses, or taxes.
1 year rr_AverageAnnualReturnYear01 24.46%
5 years rr_AverageAnnualReturnYear05 15.47%
10 years rr_AverageAnnualReturnYear10 9.62%
Delaware Smid Cap Growth Fund | Class A  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DFCIX
Maximum sales charge (load) imposed on purchases as a percentage of offering price rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
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 0.73%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25% [1]
Other expenses rr_OtherExpensesOverAssets 0.19%
Total annual fund operating expenses rr_ExpensesOverAssets 1.17%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 687
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 925
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,182
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,914
AnnualReturn2008 rr_AnnualReturn2008 (41.61%)
AnnualReturn2009 rr_AnnualReturn2009 44.49%
AnnualReturn2010 rr_AnnualReturn2010 35.03%
AnnualReturn2011 rr_AnnualReturn2011 7.96%
AnnualReturn2012 rr_AnnualReturn2012 10.38%
AnnualReturn2013 rr_AnnualReturn2013 40.84%
AnnualReturn2014 rr_AnnualReturn2014 2.81%
AnnualReturn2015 rr_AnnualReturn2015 7.05%
AnnualReturn2016 rr_AnnualReturn2016 (4.33%)
AnnualReturn2017 rr_AnnualReturn2017 35.13%
BarChartYearToDateReturnDate rr_BarChartYearToDateReturnDate Jun. 30, 2018
BarChartYearToDateReturn rr_BarChartYearToDateReturn 17.48%
BarChartHighestQuarterlyReturnDate rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2017
BarChartHighestQuarterlyReturn rr_BarChartHighestQuarterlyReturn 17.93%
BarChartLowestQuarterlyReturnDate rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
BarChartLowestQuarterlyReturn rr_BarChartLowestQuarterlyReturn (25.85%)
1 year rr_AverageAnnualReturnYear01 27.39%
5 years rr_AverageAnnualReturnYear05 13.56%
10 years rr_AverageAnnualReturnYear10 9.88%
Delaware Smid Cap Growth Fund | Class A | AfterTaxesOnDistributionsMember  
RiskReturnAbstract rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 26.95%
5 years rr_AverageAnnualReturnYear05 10.07%
10 years rr_AverageAnnualReturnYear10 7.59%
Delaware Smid Cap Growth Fund | Class A | AfterTaxesOnDistributionsAndSalesMember  
RiskReturnAbstract rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 15.82%
5 years rr_AverageAnnualReturnYear05 10.19%
10 years rr_AverageAnnualReturnYear10 7.54%
Delaware Smid Cap Growth Fund | Class C  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DEEVX
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 0.73%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.19%
Total annual fund operating expenses rr_ExpensesOverAssets 1.92%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 295
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 603
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,037
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,243
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 195
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 603
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,037
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,243
1 year rr_AverageAnnualReturnYear01 33.14%
5 years rr_AverageAnnualReturnYear05 14.06%
10 years rr_AverageAnnualReturnYear10 9.70%
Delaware Smid Cap Growth Fund | Class R  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DFRIX
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 0.73%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.19%
Total annual fund operating expenses rr_ExpensesOverAssets 1.42%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 145
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 449
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 776
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,702
1 year rr_AverageAnnualReturnYear01 34.77%
5 years rr_AverageAnnualReturnYear05 14.62%
10 years rr_AverageAnnualReturnYear10 10.27%
Delaware Smid Cap Growth Fund | Institutional Class  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DFDIX
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 0.73%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.19%
Total annual fund operating expenses rr_ExpensesOverAssets 0.92%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 94
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 293
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 509
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,131
1 year rr_AverageAnnualReturnYear01 35.45%
5 years rr_AverageAnnualReturnYear05 15.20%
10 years rr_AverageAnnualReturnYear10 10.82%
Delaware Smid Cap Growth Fund | Class R6  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DFZRX
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 0.73%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.11% [3]
Total annual fund operating expenses rr_ExpensesOverAssets 0.84%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 86
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 268
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 466
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,037
Label rr_AverageAnnualReturnLabel return before taxes (lifetime: 5/2/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 35.61%
5 years rr_AverageAnnualReturnYear05
Lifetime rr_AverageAnnualReturnSinceInception 15.89%
Delaware Healthcare Fund  
RiskReturnAbstract rr_RiskReturnAbstract  
RiskReturnHeading rr_RiskReturnHeading Delaware Healthcare Fund
ObjectiveHeading rr_ObjectiveHeading What is the Fund’s investment objective?
ObjectivePrimaryTextBlock rr_ObjectivePrimaryTextBlock

Delaware Healthcare Fund seeks maximum long-term capital growth through capital appreciation.

 

ExpenseHeading rr_ExpenseHeading What are the Fund’s fees and expenses?
ExpenseNarrativeTextBlock rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in 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.”

 

ShareholderFeesCaption rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
OperatingExpensesCaption 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
PortfolioTurnoverTextBlock 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 28% of the average value of its portfolio.

PortfolioTurnoverRate rr_PortfolioTurnoverRate 28.00%
ExpenseBreakpointDiscounts rr_ExpenseBreakpointDiscounts You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Delaware Funds® by Macquarie.
ExpenseBreakpointMinimumInvestmentRequiredAmount rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
ExpenseExampleHeading rr_ExpenseExampleHeading Example
ExpenseExampleNarrativeTextBlock 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 that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 

StrategyHeading rr_StrategyHeading What are the Fund’s principal investment strategies?
StrategyNarrativeTextBlock rr_StrategyNarrativeTextBlock

Under normal circumstances, the Fund will invest at least 80% of its assets, plus the amount of any borrowings for investment purposes, in the equity securities of healthcare companies, meaning companies that develop, produce, or distribute products or services related to the healthcare or medical industries and derive a substantial portion, that is, more than 50%, of their sales from products and services in the healthcare industry (80% policy). These products and services include, but are not limited to, pharmaceutical companies, biotechnology companies, medical device and supply companies, managed care companies, and healthcare information and service providers. The Fund invests in US and non-US companies across all market capitalizations. The Fund may invest up to 50% of its total assets in non-US companies. The Fund may also invest up to 25% of its total assets in companies located in emerging markets. The Fund is a nondiversified fund.

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.

 

StrategyPortfolioConcentration rr_StrategyPortfolioConcentration Under normal circumstances, the Fund will invest at least 80% of its assets, plus the amount of any borrowings for investment purposes, in the equity securities of healthcare companies, meaning companies that develop, produce, or distribute products or services related to the healthcare or medical industries and derive a substantial portion, that is, more than 50%, of their sales from products and services in the healthcare industry (80% policy).
RiskHeading rr_RiskHeading What are the principal risks of investing in the Fund?
RiskNarrativeTextBlock 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. 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.

Healthcare sector risk — The risk that the value of a fund’s shares will be affected by factors particular to the healthcare and related sectors (such as government regulation) and may fluctuate more widely than that of a fund that invests in a broad range of sectors.

Foreign and emerging markets 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. The risk associated with international investing will be greater in emerging markets than in more developed foreign markets because, among other things, emerging markets may have less stable political and economic environments. In addition, there often is substantially less publicly available information about issuers and such information tends to be of a lesser quality. Economic markets and structures tend to be less mature and diverse and the securities markets may also be smaller, less liquid, and subject to greater price volatility.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Nondiversification risk — A nondiversified fund has the flexibility to invest as much as 50% of its assets in as few as two issuers with no single issuer accounting for more than 25% of the fund. The remaining 50% of its assets must be diversified so that no more than 5% of its assets are invested in the securities of a single issuer. Because a nondiversified fund may invest its assets in fewer issuers, the value of its shares may increase or decrease more rapidly than if it were fully diversified.

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

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.

 

Delaware Management Company (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.

 

RiskLoseMoney 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.
RiskNondiversifiedStatus rr_RiskNondiversifiedStatus Nondiversification risk — A nondiversified fund has the flexibility to invest as much as 50% of its assets in as few as two issuers with no single issuer accounting for more than 25% of the fund. The remaining 50% of its assets must be diversified so that no more than 5% of its assets are invested in the securities of a single issuer. Because a nondiversified fund may invest its assets in fewer issuers, the value of its shares may increase or decrease more rapidly than if it were fully diversified.
BarChartAndPerformanceTableHeading rr_BarChartAndPerformanceTableHeading How has Delaware Healthcare Fund performed?
PerformanceNarrativeTextBlock 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.

 

PerformanceAvailabilityPhone rr_PerformanceAvailabilityPhone 800 523-1918
PerformanceAvailabilityWebSiteAddress rr_PerformanceAvailabilityWebSiteAddress delawarefunds.com/performance
PerformancePastDoesNotIndicateFuture 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)
BarChartClosingTextBlock rr_BarChartClosingTextBlock

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 9.87%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 22.95% for the quarter ended Sept. 30, 2009, and its lowest quarterly return was -15.99% for the quarter ended Sept. 30, 2011. The maximum Class A sales charge of 5.75%, 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.

PerformanceTableHeading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2017
PerformanceTableUsesHighestFederalRate 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.
PerformanceTableNotRelevantToTaxDeferred 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).
PerformanceTableOneClassOfAfterTaxShown rr_PerformanceTableOneClassOfAfterTaxShown After-tax performance is presented only for Class A shares of the Fund.
PerformanceTableFootnotesTextBlock rr_PerformanceTableFootnotesTextBlock Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company.
PerformanceTableClosingTextBlock 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 Healthcare Fund | Russell 3000® Healthcare Index (reflects no deduction for fees, expenses, or taxes)  
RiskReturnAbstract rr_RiskReturnAbstract  
IndexNoDeductionForFeesExpensesTaxes rr_IndexNoDeductionForFeesExpensesTaxes Reflects no deduction for fees, expenses, or taxes.
1 year rr_AverageAnnualReturnYear01 23.13%
5 years rr_AverageAnnualReturnYear05 17.99%
10 years rr_AverageAnnualReturnYear10 11.60%
Delaware Healthcare Fund | Class A  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DLHAX
Maximum sales charge (load) imposed on purchases as a percentage of offering price rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
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 0.85%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.21%
Total annual fund operating expenses rr_ExpensesOverAssets 1.31%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 701
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 966
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,252
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 2,063
AnnualReturn2008 rr_AnnualReturn2008 (12.81%)
AnnualReturn2009 rr_AnnualReturn2009 61.31%
AnnualReturn2010 rr_AnnualReturn2010 15.84%
AnnualReturn2011 rr_AnnualReturn2011 2.78%
AnnualReturn2012 rr_AnnualReturn2012 18.96%
AnnualReturn2013 rr_AnnualReturn2013 50.69%
AnnualReturn2014 rr_AnnualReturn2014 17.04%
AnnualReturn2015 rr_AnnualReturn2015 11.43%
AnnualReturn2016 rr_AnnualReturn2016 (4.34%)
AnnualReturn2017 rr_AnnualReturn2017 31.96%
BarChartYearToDateReturnDate rr_BarChartYearToDateReturnDate Jun. 30, 2018
BarChartYearToDateReturn rr_BarChartYearToDateReturn 9.87%
BarChartHighestQuarterlyReturnDate rr_BarChartHighestQuarterlyReturnDate Sep. 30, 2009
BarChartHighestQuarterlyReturn rr_BarChartHighestQuarterlyReturn 22.95%
BarChartLowestQuarterlyReturnDate rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
BarChartLowestQuarterlyReturn rr_BarChartLowestQuarterlyReturn (15.99%)
1 year rr_AverageAnnualReturnYear01 24.35%
5 years rr_AverageAnnualReturnYear05 18.51%
10 years rr_AverageAnnualReturnYear10 16.64%
Delaware Healthcare Fund | Class A | AfterTaxesOnDistributionsMember  
RiskReturnAbstract rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 23.09%
5 years rr_AverageAnnualReturnYear05 16.51%
10 years rr_AverageAnnualReturnYear10 14.57%
Delaware Healthcare Fund | Class A | AfterTaxesOnDistributionsAndSalesMember  
RiskReturnAbstract rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 14.11%
5 years rr_AverageAnnualReturnYear05 14.40%
10 years rr_AverageAnnualReturnYear10 13.11%
Delaware Healthcare Fund | Class C  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DLHCX
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 0.85%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.21%
Total annual fund operating expenses rr_ExpensesOverAssets 2.06%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 309
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 646
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,108
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,390
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 209
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 646
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,108
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,390
Label rr_AverageAnnualReturnLabel return before taxes (lifetime: 01/28/10–12/31/17)
1 year rr_AverageAnnualReturnYear01 30.03%
5 years rr_AverageAnnualReturnYear05 19.03%
Lifetime rr_AverageAnnualReturnSinceInception 16.20%
Delaware Healthcare Fund | Class R  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DLRHX
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 0.85%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.21%
Total annual fund operating expenses rr_ExpensesOverAssets 1.56%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 159
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 493
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 850
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,856
Label rr_AverageAnnualReturnLabel return before taxes (lifetime: 01/28/10–12/31/17)
1 year rr_AverageAnnualReturnYear01 31.65%
5 years rr_AverageAnnualReturnYear05 19.63%
Lifetime rr_AverageAnnualReturnSinceInception 16.77%
Delaware Healthcare Fund | Institutional Class  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DLHIX
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 0.85%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.21%
Total annual fund operating expenses rr_ExpensesOverAssets 1.06%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 108
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 337
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 585
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,294
1 year rr_AverageAnnualReturnYear01 32.32%
5 years rr_AverageAnnualReturnYear05 20.21%
10 years rr_AverageAnnualReturnYear10 17.56%
Delaware Small Cap Growth Fund  
RiskReturnAbstract rr_RiskReturnAbstract  
RiskReturnHeading rr_RiskReturnHeading Delaware Small Cap Growth Fund
ObjectiveHeading rr_ObjectiveHeading What is the Fund’s investment objective?
ObjectivePrimaryTextBlock rr_ObjectivePrimaryTextBlock

Delaware Small Cap Growth Fund seeks long-term capital appreciation.

 

ExpenseHeading rr_ExpenseHeading What are the Fund’s fees and expenses?
ExpenseNarrativeTextBlock rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in 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.”

 

ShareholderFeesCaption rr_ShareholderFeesCaption Shareholder fees (fees paid directly from your investment)
OperatingExpensesCaption 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
PortfolioTurnoverTextBlock 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 was 151% of the average value of its portfolio.

ExpenseBreakpointDiscounts rr_ExpenseBreakpointDiscounts You may qualify for sales-charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Delaware Funds® by Macquarie.
ExpenseBreakpointMinimumInvestmentRequiredAmount rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
ExpenseExampleHeading rr_ExpenseExampleHeading Example
ExpenseExampleNarrativeTextBlock 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 Manager’s expense 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:

 

StrategyHeading rr_StrategyHeading What are the Fund’s principal investment strategies?
StrategyNarrativeTextBlock rr_StrategyNarrativeTextBlock

The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy. Under normal circumstances, the Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in equity securities of small-capitalization companies (80% policy). The Fund may invest in both domestic and foreign small-capitalization companies. For purposes of this Fund, small-market capitalization companies are those companies whose market capitalization is similar to the market capitalization of companies in the Russell 2000® Growth Index. The Index is used for purposes of determining range and not for targeting portfolio management. As of June 30, 2018, the Russell 2000 Growth Index had a market capitalization range between $51 million and $6.7 billion. The market capitalization range for the Russell 2000 Growth Index will change on a periodic basis. A company’s market capitalization is determined based on its current market capitalization. Frank Russell Company (“Russell”) is the source and owner of the trademarks, service marks, and copyrights related to the Russell Indexes. Russell® is a trademark of the Frank Russell Company.

Using a top-down thematic overlay combined with bottom-up, fundamental research, the Manager seeks to identify early stage major demand trends and invest in securities of competitively advantaged companies that it believes should benefit from these trends. The Manager focuses on earnings growth as it believes earnings growth drives stock prices and the companies with the strongest gains in profitability have the potential to enjoy share performance that exceeds the broad market averages, provided that the earnings are of high quality and likely to continue.

Under normal circumstances, the Fund generally holds 30 to 40 stocks, although from time to time the Fund may hold more or fewer names depending on the Manager’s assessment of the investment opportunities available.

The Manager may use futures and options to seek to protect unrealized gains in the Fund’s portfolio when the Manager anticipates adverse conditions; to neutralize the effect of any price declines, without selling a security; and to gain exposure to a particular market segment without purchasing individual securities in that segment.

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.

 

StrategyPortfolioConcentration rr_StrategyPortfolioConcentration The Fund invests primarily in common stocks of growth-oriented companies that its investment manager, Delaware Management Company (Manager), believes have long-term capital appreciation potential and expect to grow faster than the US economy.
RiskHeading rr_RiskHeading What are the principal risks of investing in the Fund?
RiskNarrativeTextBlock 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. 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.

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Limited number of stocks risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds.

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.

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 a 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).

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.

 

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.

 

RiskLoseMoney 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.
BarChartAndPerformanceTableHeading rr_BarChartAndPerformanceTableHeading How has Delaware Small Cap Growth Fund performed?
PerformanceNarrativeTextBlock 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-year and 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.

 

PerformanceAvailabilityPhone rr_PerformanceAvailabilityPhone 800 523-1918
PerformanceAvailabilityWebSiteAddress rr_PerformanceAvailabilityWebSiteAddress delawarefunds.com/performance
PerformancePastDoesNotIndicateFuture 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)
BarChartClosingTextBlock rr_BarChartClosingTextBlock

As of June 30, 2018, the Fund’s Class A shares had a calendar year-to-date return of 18.83%. During the periods illustrated in this bar chart, Class A’s highest quarterly return was 19.40% for the quarter ended Dec. 31, 2017, and its lowest quarterly return was 3.31% for the quarter ended Sept. 30, 2017. The maximum Class A sales charge of 5.75%, 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.

PerformanceTableHeading rr_PerformanceTableHeading Average annual total returns for periods ended December 31, 2017
PerformanceTableUsesHighestFederalRate 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.
PerformanceTableNotRelevantToTaxDeferred 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).
PerformanceTableOneClassOfAfterTaxShown rr_PerformanceTableOneClassOfAfterTaxShown After-tax performance is presented only for Class A shares of the Fund.
PerformanceTableClosingTextBlock 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 Small Cap Growth Fund | Russell 2000 Growth Index (reflects no deduction for fees, expenses, or taxes)  
RiskReturnAbstract rr_RiskReturnAbstract  
IndexNoDeductionForFeesExpensesTaxes rr_IndexNoDeductionForFeesExpensesTaxes Reflects no deduction for fees, expenses, or taxes.
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 22.17%
Lifetime rr_AverageAnnualReturnSinceInception 24.00%
Delaware Small Cap Growth Fund | Class A  
RiskReturnAbstract rr_RiskReturnAbstract  
AnnualReturn2017 rr_AnnualReturn2017 34.47%
Delaware Small Cap Growth Fund | Class A  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DSGDX
Maximum sales charge (load) imposed on purchases as a percentage of offering price rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
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 0.75%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 2.33%
Total annual fund operating expenses rr_ExpensesOverAssets 3.33%
Fee waivers and expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (2.03%) [4]
Total annual fund operating expenses after fee waivers and expense reimbursements rr_NetExpensesOverAssets 1.30%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 700
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,362
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 2,046
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 3,859
BarChartYearToDateReturnDate rr_BarChartYearToDateReturnDate Jun. 30, 2018
BarChartYearToDateReturn rr_BarChartYearToDateReturn 18.83%
BarChartHighestQuarterlyReturnDate rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2017
BarChartHighestQuarterlyReturn rr_BarChartHighestQuarterlyReturn 19.40%
BarChartLowestQuarterlyReturnDate rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2017
BarChartLowestQuarterlyReturn rr_BarChartLowestQuarterlyReturn 3.31%
1 year rr_AverageAnnualReturnYear01 26.76%
Lifetime rr_AverageAnnualReturnSinceInception 23.51%
Delaware Small Cap Growth Fund | Class A | AfterTaxesOnDistributionsMember  
RiskReturnAbstract rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 23.20%
Lifetime rr_AverageAnnualReturnSinceInception 19.90%
Delaware Small Cap Growth Fund | Class A | AfterTaxesOnDistributionsAndSalesMember  
RiskReturnAbstract rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 15.01%
Lifetime rr_AverageAnnualReturnSinceInception 16.28%
Delaware Small Cap Growth Fund | Class C  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DSGEX
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 0.75%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 2.33%
Total annual fund operating expenses rr_ExpensesOverAssets 4.08%
Fee waivers and expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (2.03%) [4]
Total annual fund operating expenses after fee waivers and expense reimbursements rr_NetExpensesOverAssets 2.05%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 308
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,056
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,919
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 4,149
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 208
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 1,056
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,919
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 4,149
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 32.34%
Lifetime rr_AverageAnnualReturnSinceInception 27.48%
Delaware Small Cap Growth Fund | Class R  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DSGFX
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 0.75%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 2.33%
Total annual fund operating expenses rr_ExpensesOverAssets 3.58%
Fee waivers and expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (2.03%) [4]
Total annual fund operating expenses after fee waivers and expense reimbursements rr_NetExpensesOverAssets 1.55%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 158
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 909
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,682
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 3,712
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 34.06%
Lifetime rr_AverageAnnualReturnSinceInception 28.13%
Delaware Small Cap Growth Fund | Institutional Class  
RiskReturnAbstract rr_RiskReturnAbstract  
TradingSymbol dei_TradingSymbol DSGGX
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 0.75%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 2.33%
Total annual fund operating expenses rr_ExpensesOverAssets 3.08%
Fee waivers and expense reimbursements rr_FeeWaiverOrReimbursementOverAssets (2.03%) [4]
Total annual fund operating expenses after fee waivers and expense reimbursements rr_NetExpensesOverAssets 1.05%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 107
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 760
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,438
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 3,250
Label rr_AverageAnnualReturnLabel Lifetime (6/30/16 – 12/31/17)
1 year rr_AverageAnnualReturnYear01 34.62%
Lifetime rr_AverageAnnualReturnSinceInception 28.76%
[1] The Fund’s Class A shares are subject to a blended 12b-1 fee of 0.10% on all shares acquired prior to June 1, 1992 and 0.25% on all shares acquired on or after June 1, 1992. This method of calculating Class A 12b-1 fees may be discontinued at the sole discretion of the Fund's Board of Trustees.
[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’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 1.05% of the Fund’s average daily net assets from July 27, 2018 through July 29, 2019. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.

Element Counts

Number of Extension Elements: 87
Number of Contexts: 27
Number of Segments: 21
Number of Units: 2

Content Summary

000010 - Document - Document and Entity Information

010000 - Document - Risk/Return Summary {Unlabeled}

040000 - Disclosure - Risk/Return Detail Data {Elements}


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