| Form N-CSR Cover | 12 Months Ended |
| Sep. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | DELAWARE GROUP EQUITY FUNDS IV |
| Entity Central Index Key | 0000778108 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Sep. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | DELAWARE GROUP EQUITY FUNDS IV |
| Entity Central Index Key | 0000778108 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Sep. 30, 2024 |
| C000212936 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Opportunity Fund |
| Class Name | Class A |
| Trading Symbol | FIUSX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Opportunity Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.12 % |
| Expenses Paid, Amount | $ 128 |
| Expense Ratio, Percent | 1.12% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Opportunity Fund (Class A) returned 29.35% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Stock selection was the lead contributor to the Fund’s outperformance over the period. Holdings in the consumer staples sector outperformed, specifically positions in the food distributors and packaged foods industries. Holdings in the utilities sector generated the strongest total return over the period, benefitting from an increased demand for power generation. Strong stock selection in addition to an overweight allocation to companies in the financial services sector contributed over the period. Top detractors from performance: Holdings in the energy sector underperformed those in the benchmark as holdings in the oil, gas, and consumable fuels industry declined on average. The energy sector was the only sector in the Fund to decline for the period as the price of oil fell due to excess supply. Stock selection in the industrials sector was weak as holdings in the electrical equipment and building products industries underperformed. In the technology sector, the Fund’s semiconductors holdings lagged the stronger returns of those in the benchmark during the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Opportunity Fund (Class A) – including sales charge 21.92 % 8.81 % 7.35 % Delaware Opportunity Fund (Class A) – excluding sales charge 29.35 % 10.11 % 7.99 % Russell 3000 Index 35.19 % 15.26 % 12.83 % Russell Midcap Value Index 29.01 % 10.33 % 8.93 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 3000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 3000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell Midcap Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Material Change Date | Jan. 29, 2024 |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 581,087,242 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 3,846,494 |
| Investment Company Portfolio Turnover | 17% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 94 Total advisory fees paid $ Portfolio turnover rate 17 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financial Services 18.37 % Industrials 18.15 % Consumer Discretionary 10.84 % Basic Industry 9.02 % Utilities 8.42 % Technology 8.27 % Real Estate Investment Trusts 7.36 % Healthcare 7.06 % Energy 5.19 % Consumer Staples 4.84 % Transportation 1.46 % Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Material Fund Change [Text Block] | Material Fund changes Effective January 29, 2024, the Fund introduced a revised fee waiver for Class A shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). This is a summary of certain changes to the Fund since the beginning of the reporting period. For more complete information, you may review the Fund's next prospectus, which we expect to be available by January 29, 2025, at delawarefunds.com/literature |
| Material Fund Change Expenses [Text Block] | Effective January 29, 2024, the Fund introduced a revised fee waiver for Class A shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). |
| Updated Prospectus Phone Number | 800 523-1918 |
| Updated Prospectus Web Address | delawarefunds.com/literature |
| C000240403 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Opportunity Fund |
| Class Name | Class C |
| Trading Symbol | FIVCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Opportunity Fund (Fund) for the period of October 1, 2023, to September 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $ 1.87 % |
| Expenses Paid, Amount | $ 214 |
| Expense Ratio, Percent | 1.87% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Opportunity Fund (Class C) returned 28.36% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Stock selection was the lead contributor to the Fund’s outperformance over the period. Holdings in the consumer staples sector outperformed, specifically positions in the food distributors and packaged foods industries. Holdings in the utilities sector generated the strongest total return over the period, benefitting from an increased demand for power generation. Strong stock selection in addition to an overweight allocation to companies in the financial services sector contributed over the period. Top detractors from performance: Holdings in the energy sector underperformed those in the benchmark as holdings in the oil, gas, and consumable fuels industry declined on average. The energy sector was the only sector in the Fund to decline for the period as the price of oil fell due to excess supply. Stock selection in the industrials sector was weak as holdings in the electrical equipment and building products industries underperformed. In the technology sector, the Fund’s semiconductors holdings lagged the stronger returns of those in the benchmark during the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years (or period) of the Class for the life of the Class. It also assumes a $10,000 initial investment at the Class's inception date in a broad-based Growth of $10,000 investment For the period February 28, 2023 (Class C's inception), through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year Since inception Delaware Opportunity Fund (Class C) – including sales charge 27.36 % 12.86 % Delaware Opportunity Fund (Class C) – excluding sales charge 28.36 % 12.86 % Russell 3000 Index 35.19 % 26.75 % Russell Midcap Value Index 29.01 % 14.49 % |
| Performance Inception Date | Feb. 28, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 3000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 3000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell Midcap Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Material Change Date | Jan. 29, 2024 |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 581,087,242 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 3,846,494 |
| Investment Company Portfolio Turnover | 17% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 94 Total advisory fees paid $ Portfolio turnover rate 17 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financial Services 18.37 % Industrials 18.15 % Consumer Discretionary 10.84 % Basic Industry 9.02 % Utilities 8.42 % Technology 8.27 % Real Estate Investment Trusts 7.36 % Healthcare 7.06 % Energy 5.19 % Consumer Staples 4.84 % Transportation 1.46 % Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Material Fund Change [Text Block] | Material Fund changes Effective January 29, 2024, the Fund introduced a revised fee waiver for Class C shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). This is a summary of certain changes to the Fund since the beginning of the reporting period. For more complete information, you may review the Fund's next prospectus, which we expect to be available by January 29, 2025, at delawarefunds.com/literature |
| Material Fund Change Expenses [Text Block] | Effective January 29, 2024, the Fund introduced a revised fee waiver for Class C shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). |
| Updated Prospectus Phone Number | 800 523-1918 |
| Updated Prospectus Web Address | delawarefunds.com/literature |
| C000240404 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Opportunity Fund |
| Class Name | Class R |
| Trading Symbol | FIZRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Opportunity Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R $ 1.37 % |
| Expenses Paid, Amount | $ 157 |
| Expense Ratio, Percent | 1.37% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Opportunity Fund (Class R) returned 29.00% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Stock selection was the lead contributor to the Fund’s outperformance over the period. Holdings in the consumer staples sector outperformed, specifically positions in the food distributors and packaged foods industries. Holdings in the utilities sector generated the strongest total return over the period, benefitting from an increased demand for power generation. Strong stock selection in addition to an overweight allocation to companies in the financial services sector contributed over the period. Top detractors from performance: Holdings in the energy sector underperformed those in the benchmark as holdings in the oil, gas, and consumable fuels industry declined on average. The energy sector was the only sector in the Fund to decline for the period as the price of oil fell due to excess supply. Stock selection in the industrials sector was weak as holdings in the electrical equipment and building products industries underperformed. In the technology sector, the Fund’s semiconductors holdings lagged the stronger returns of those in the benchmark during the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years (or period) of the Class for the life of the Class. It also assumes a $10,000 initial investment at the Class's inception date in a broad-based Growth of $10,000 investment For the period February 28, 2023 (Class R's inception), through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year Since inception Delaware Opportunity Fund (Class R) – including sales charge 29.00 % 13.42 % Delaware Opportunity Fund (Class R) – excluding sales charge 29.00 % 13.42 % Russell 3000 Index 35.19 % 26.75 % Russell Midcap Value Index 29.01 % 14.49 % |
| Performance Inception Date | Feb. 28, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 3000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 3000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell Midcap Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Material Change Date | Jan. 29, 2024 |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 581,087,242 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 3,846,494 |
| Investment Company Portfolio Turnover | 17% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 94 Total advisory fees paid $ Portfolio turnover rate 17 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financial Services 18.37 % Industrials 18.15 % Consumer Discretionary 10.84 % Basic Industry 9.02 % Utilities 8.42 % Technology 8.27 % Real Estate Investment Trusts 7.36 % Healthcare 7.06 % Energy 5.19 % Consumer Staples 4.84 % Transportation 1.46 % Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Material Fund Change [Text Block] | Material Fund changes Effective January 29, 2024, the Fund introduced a revised fee waiver for Class R shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). This is a summary of certain changes to the Fund since the beginning of the reporting period. For more complete information, you may review the Fund's next prospectus, which we expect to be available by January 29, 2025, at delawarefunds.com/literature |
| Material Fund Change Expenses [Text Block] | Effective January 29, 2024, the Fund introduced a revised fee waiver for Class R shares of 0.86% (excluding certain items, such as distribution and service (12b-1) fees). |
| Updated Prospectus Phone Number | 800 523-1918 |
| Updated Prospectus Web Address | delawarefunds.com/literature |
| C000212938 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Opportunity Fund |
| Class Name | Institutional Class |
| Trading Symbol | FIVUX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Opportunity Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $ 0.87 % |
| Expenses Paid, Amount | $ 100 |
| Expense Ratio, Percent | 0.87% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Opportunity Fund (Institutional Class) returned 29.66% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Stock selection was the lead contributor to the Fund’s outperformance over the period. Holdings in the consumer staples sector outperformed, specifically positions in the food distributors and packaged foods industries. Holdings in the utilities sector generated the strongest total return over the period, benefitting from an increased demand for power generation. Strong stock selection in addition to an overweight allocation to companies in the financial services sector contributed over the period. Top detractors from performance: Holdings in the energy sector underperformed those in the benchmark as holdings in the oil, gas, and consumable fuels industry declined on average. The energy sector was the only sector in the Fund to decline for the period as the price of oil fell due to excess supply. Stock selection in the industrials sector was weak as holdings in the electrical equipment and building products industries underperformed. In the technology sector, the Fund’s semiconductors holdings lagged the stronger returns of those in the benchmark during the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Opportunity Fund (Institutional Class) – including sales charge 29.66 % 10.42 % 8.31 % Delaware Opportunity Fund (Institutional Class) – excluding sales charge 29.66 % 10.42 % 8.31 % Russell 3000 Index 35.19 % 15.26 % 12.83 % Russell Midcap Value Index 29.01 % 10.33 % 8.93 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 3000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 3000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell Midcap Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Material Change Date | Jan. 29, 2024 |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 581,087,242 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 3,846,494 |
| Investment Company Portfolio Turnover | 17% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 94 Total advisory fees paid $ Portfolio turnover rate 17 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financial Services 18.37 % Industrials 18.15 % Consumer Discretionary 10.84 % Basic Industry 9.02 % Utilities 8.42 % Technology 8.27 % Real Estate Investment Trusts 7.36 % Healthcare 7.06 % Energy 5.19 % Consumer Staples 4.84 % Transportation 1.46 % Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Material Fund Change [Text Block] | Material Fund changes Effective January 29, 2024, the Fund introduced a revised fee waiver for Institutional Class shares of 0.86% (excluding certain items). This is a summary of certain changes to the Fund since the beginning of the reporting period. For more complete information, you may review the Fund's next prospectus, which we expect to be available by January 29, 2025, at delawarefunds.com/literature |
| Material Fund Change Expenses [Text Block] | Effective January 29, 2024, the Fund introduced a revised fee waiver for Institutional Class shares of 0.86% (excluding certain items). |
| Updated Prospectus Phone Number | 800 523-1918 |
| Updated Prospectus Web Address | delawarefunds.com/literature |
| C000212937 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Opportunity Fund |
| Class Name | Class R6 |
| Trading Symbol | FIVVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Opportunity Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 $ 0.78 % |
| Expenses Paid, Amount | $ 90 |
| Expense Ratio, Percent | 0.78% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Opportunity Fund (Class R6) returned 29.80% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Stock selection was the lead contributor to the Fund’s outperformance over the period. Holdings in the consumer staples sector outperformed, specifically positions in the food distributors and packaged foods industries. Holdings in the utilities sector generated the strongest total return over the period, benefitting from an increased demand for power generation. Strong stock selection in addition to an overweight allocation to companies in the financial services sector contributed over the period. Top detractors from performance: Holdings in the energy sector underperformed those in the benchmark as holdings in the oil, gas, and consumable fuels industry declined on average. The energy sector was the only sector in the Fund to decline for the period as the price of oil fell due to excess supply. Stock selection in the industrials sector was weak as holdings in the electrical equipment and building products industries underperformed. In the technology sector, the Fund’s semiconductors holdings lagged the stronger returns of those in the benchmark during the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Opportunity Fund (Class R6) – including sales charge 29.80 % 10.54 % 8.44 % Delaware Opportunity Fund (Class R6) – excluding sales charge 29.80 % 10.54 % 8.44 % Russell 3000 Index 35.19 % 15.26 % 12.83 % Russell Midcap Value Index 29.01 % 10.33 % 8.93 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 3000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 3000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell Midcap Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 581,087,242 |
| Holdings Count | Holding | 94 |
| Advisory Fees Paid, Amount | $ 3,846,494 |
| Investment Company Portfolio Turnover | 17% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 94 Total advisory fees paid $ Portfolio turnover rate 17 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financial Services 18.37 % Industrials 18.15 % Consumer Discretionary 10.84 % Basic Industry 9.02 % Utilities 8.42 % Technology 8.27 % Real Estate Investment Trusts 7.36 % Healthcare 7.06 % Energy 5.19 % Consumer Staples 4.84 % Transportation 1.46 % Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Hartford Financial Services Group 1.91 % Marriott International Class A 1.83 % Public Service Enterprise Group 1.77 % DR Horton 1.72 % ITT 1.66 % KBR 1.66 % Quanta Services 1.64 % Parker-Hannifin 1.58 % CACI International Class A 1.53 % East West Bancorp 1.53 % |
| C000212968 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Growth and Income Fund |
| Class Name | Class A |
| Trading Symbol | FGINX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Growth and Income Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $ 1.02 % |
| Expenses Paid, Amount | $ 115 |
| Expense Ratio, Percent | 1.02% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Growth and Income Fund (Class A) returned 26.26% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Holdings in non-index stocks Meta Platforms Inc. and Broadcom Inc., which outperformed. Overweight allocation to the communication services sector, which outperformed. Underweight allocation to the consumer staples sector, which underperformed. Not holding a position in Intel Corp. had a positive impact on relative performance, as the stock underperformed the index. Top detractors from performance: Holdings in IT names Micron Technology Inc. and Cisco Systems Inc., which underperformed. Overweight allocation to healthcare, which underperformed. Not holding any stocks in the utilities sector also detracted from performance, as they experienced positive returns over the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Growth and Income Fund (Class A) – including sales charge 19.01 % 10.08 % 8.14 % Delaware Growth and Income Fund (Class A) – excluding sales charge 26.26 % 11.39 % 8.78 % Russell 1000 Index 21.18 % 15.64 % 13.10 % Russell 1000 Value Index 27.76 % 10.69 % 9.23 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 1000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 1000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell 1000 Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 1,366,903,398 |
| Holdings Count | Holding | 67 |
| Advisory Fees Paid, Amount | $ 7,755,055 |
| Investment Company Portfolio Turnover | 35% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 67 Total advisory fees paid $ Portfolio turnover rate 35 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financials 21.92 % Healthcare 18.68 % Information Technology 12.32 % Communication Services 11.68 % Energy 10.61 % Industrials 8.72 % Consumer Discretionary 6.88 % Consumer Staples 6.52 % Real Estate 0.61 % Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| C000212967 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Growth and Income Fund |
| Class Name | Institutional Class |
| Trading Symbol | FGIPX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Growth and Income Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $ 0.77 % |
| Expenses Paid, Amount | $ 87 |
| Expense Ratio, Percent | 0.77% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Growth and Income Fund (Institutional Class) returned 26.56% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Holdings in non-index stocks Meta Platforms Inc. and Broadcom Inc., which outperformed. Overweight allocation to the communication services sector, which outperformed. Underweight allocation to the consumer staples sector, which underperformed. Not holding a position in Intel Corp. had a positive impact on relative performance, as the stock underperformed the index. Top detractors from performance: Holdings in IT names Micron Technology Inc. and Cisco Systems Inc., which underperformed. Overweight allocation to healthcare, which underperformed. Not holding any stocks in the utilities sector also detracted from performance, as they experienced positive returns over the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Growth and Income Fund (Institutional Class) – including sales charge 26.56 % 11.68 % 9.12 % Delaware Growth and Income Fund (Institutional Class) – excluding sales charge 26.56 % 11.68 % 9.12 % Russell 1000 Index 21.18 % 15.64 % 13.10 % Russell 1000 Value Index 27.76 % 10.69 % 9.23 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 1000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 1000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell 1000 Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 1,366,903,398 |
| Holdings Count | Holding | 67 |
| Advisory Fees Paid, Amount | $ 7,755,055 |
| Investment Company Portfolio Turnover | 35% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 67 Total advisory fees paid $ Portfolio turnover rate 35 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financials 21.92 % Healthcare 18.68 % Information Technology 12.32 % Communication Services 11.68 % Energy 10.61 % Industrials 8.72 % Consumer Discretionary 6.88 % Consumer Staples 6.52 % Real Estate 0.61 % Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| C000212969 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Delaware Growth and Income Fund |
| Class Name | Class R6 |
| Trading Symbol | FGIQX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Delaware Growth and Income Fund (Fund) for the period of October 1, 2023, |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at delawarefunds.com/literature. You can also request this information by contacting us at 800 523-1918, weekdays from 8:30am to 6:00pm ET. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800 523-1918 |
| Additional Information Website | delawarefunds.com/literature |
| Expenses [Text Block] | What were the Fund's costs for the last 12 months? (Based on a hypothetical $10,000 investment) Class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 $ 0.70 % |
| Expenses Paid, Amount | $ 79 |
| Expense Ratio, Percent | 0.70% |
| Factors Affecting Performance [Text Block] | Management’s discussion of Fund performance Performance highlights Delaware Growth and Income Fund (Class R6) returned 26.61% (excluding sales charge) for the 12 months ended September 30, 2024. ® ® Top contributors to performance: Holdings in non-index stocks Meta Platforms Inc. and Broadcom Inc., which outperformed. Overweight allocation to the communication services sector, which outperformed. Underweight allocation to the consumer staples sector, which underperformed. Not holding a position in Intel Corp. had a positive impact on relative performance, as the stock underperformed the index. Top detractors from performance: Holdings in IT names Micron Technology Inc. and Cisco Systems Inc., which underperformed. Overweight allocation to healthcare, which underperformed. Not holding any stocks in the utilities sector also detracted from performance, as they experienced positive returns over the period. Frank Russell Company is the source and owner of the trademarks, service marks and copyrights related to the Russell Indexes. Russell ® |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Fund performance The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Class. It also assumes a $10,000 initial investment at the beginning of the first full fiscal year in a broad-based Growth of $10,000 investment For the period September 30, 2014, through September 30, 2024 |
| Average Annual Return [Table Text Block] | Average annual total returns (as of September 30, 2024) 1 year 5 year 10 year Delaware Growth and Income Fund (Class R6) – including sales charge 26.61 % 11.76 % 9.18 % Delaware Growth and Income Fund (Class R6) – excluding sales charge 26.61 % 11.76 % 9.18 % Russell 1000 Index 21.18 % 15.64 % 13.10 % Russell 1000 Value Index 27.76 % 10.69 % 9.23 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| Performance Table Market Index Changed [Text Block] | In connection with new regulatory requirements, effective the date of this report, the Fund changed its broad-based securities market benchmark index to the Russell 1000 Index. |
| Prior Market Index Comparison [Text Block] | Although the Russell 1000 Index can be considered broadly representative of the overall securities market applicable to the Fund, the Fund will continue to show the performance of the Russell 1000 Value Index for comparative purposes because Delaware Management Company, the Fund's manager, believes it is more representative of the Fund’s investment universe. |
| Material Change Date | Jan. 29, 2024 |
| Updated Performance Information Location [Text Block] | Visit delawarefunds.com/performance for the most recent performance information. |
| Net Assets | $ 1,366,903,398 |
| Holdings Count | Holding | 67 |
| Advisory Fees Paid, Amount | $ 7,755,055 |
| Investment Company Portfolio Turnover | 35% |
| Additional Fund Statistics [Text Block] | Fund statistics Fund net assets $ Total number of portfolio holdings 67 Total advisory fees paid $ Portfolio turnover rate 35 % |
| Holdings [Text Block] | Fund holdings The tables below show the investment makeup of the Fund, with each category representing a percentage of the total net assets of the Fund. Sector allocation Financials 21.92 % Healthcare 18.68 % Information Technology 12.32 % Communication Services 11.68 % Energy 10.61 % Industrials 8.72 % Consumer Discretionary 6.88 % Consumer Staples 6.52 % Real Estate 0.61 % Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| Largest Holdings [Text Block] | Top 10 equity holdings Exxon Mobil 5.62 % Philip Morris International 4.73 % Cigna Group 3.99 % Cisco Systems 3.91 % Gilead Sciences 3.49 % Bristol-Myers Squibb 3.02 % Merck & Co. 2.94 % Verizon Communications 2.84 % Comcast Class A 2.60 % CVS Health 2.47 % |
| Material Fund Change [Text Block] | Material Fund changes Effective January 29, 2024, the Fund introduced a revised fee This is a summary of certain changes to the Fund since the beginning of the reporting period. For more complete information, you may review the Fund's next prospectus, which we expect to be available by January 29, 2025, at delawarefunds.com/literature |
| Material Fund Change Expenses [Text Block] | Effective January 29, 2024, the Fund introduced a revised fee |
| Updated Prospectus Phone Number | 800 523-1918 |
| Updated Prospectus Web Address | delawarefunds.com/literature |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 19 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||||||||||
| Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | |
| C000212936 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class A) – including sales charge | |||||||||||||||||||
| Account Value | $ 20,329.59 | $ 20,329.59 | $ 20,329.59 | $ 20,329.59 | $ 15,716.1 | $ 14,277.54 | $ 16,018.29 | $ 10,889.47 | $ 12,560.83 | $ 12,461.07 | $ 11,701.71 | $ 10,002.67 | $ 9,314.1 | $ 9,425 | ||||||
| Average Annual Return, Percent | 21.92% | 8.81% | 7.35% | |||||||||||||||||
| C000212936 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class A) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 29.35% | 10.11% | 7.99% | |||||||||||||||||
| C000240403 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class C) – including sales charge | |||||||||||||||||||
| Account Value | $ 12,115.11 | $ 12,115.11 | $ 12,115.11 | $ 12,115.11 | $ 10,965.37 | $ 11,525.99 | $ 10,594.79 | 9,438.36 | $ 9,868.94 | $ 9,500.77 | $ 9,999.98 | |||||||||
| Average Annual Return, Percent | 27.36% | 12.86% | ||||||||||||||||||
| C000240403 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class C) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 28.36% | 12.86% | ||||||||||||||||||
| C000240404 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class R) – including sales charge | |||||||||||||||||||
| Account Value | $ 12,211.91 | $ 12,211.91 | 12,211.91 | 12,211.91 | 11,036.89 | 11,590.96 | 10,642.03 | 9,466.44 | 9,887.66 | 9,507.01 | 9,999.98 | |||||||||
| Average Annual Return, Percent | 29% | 13.42% | ||||||||||||||||||
| C000240404 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class R) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 29% | 13.42% | ||||||||||||||||||
| C000212938 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Institutional Class) – including sales charge | |||||||||||||||||||
| Account Value | $ 22,220.46 | $ 22,220.46 | $ 22,220.46 | $ 22,220.46 | 17,136.84 | 15,521.88 | 17,363.11 | 11,771.73 | 13,535.92 | 13,383.54 | 12,529.45 | 10,675.03 | 9,912.83 | 9,999.98 | ||||||
| Average Annual Return, Percent | 29.66% | 10.42% | 8.31% | |||||||||||||||||
| C000212938 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Institutional Class) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 29.66% | 10.42% | 8.31% | |||||||||||||||||
| C000212937 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class R6) – including sales charge | |||||||||||||||||||
| Account Value | $ 22,476.05 | 22,476.05 | $ 22,476.05 | $ 22,476.05 | 17,316.62 | 15,671.97 | 17,510.23 | 11,854.29 | 13,614.93 | 13,449.52 | 12,575.94 | 10,704.17 | 9,925.5 | 9,999.98 | ||||||
| Average Annual Return, Percent | 29.80% | 10.54% | 8.44% | |||||||||||||||||
| C000212937 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Opportunity Fund (Class R6) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 29.80% | 10.54% | 8.44% | |||||||||||||||||
| C000212968 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Class A) – including sales charge | |||||||||||||||||||
| Account Value | $ 21,871.56 | 21,871.56 | $ 21,871.56 | $ 21,871.56 | 17,323.03 | 14,466.63 | 15,359.42 | 11,734.35 | 12,753.51 | 12,500.63 | 11,328.02 | 9,937.73 | 8,895.19 | 9,425 | ||||||
| Average Annual Return, Percent | 19.01% | 10.08% | 8.14% | |||||||||||||||||
| C000212968 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Class A) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 26.26% | 11.39% | 8.78% | |||||||||||||||||
| C000212967 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Institutional Class) – including sales charge | |||||||||||||||||||
| Account Value | $ 23,931 | 23,931 | $ 23,931 | $ 23,931 | 18,909 | 15,757 | 16,681 | 12,716 | 13,774 | 13,469 | 12,164 | 10,631 | 9,476 | 10,000 | ||||||
| Average Annual Return, Percent | 26.56% | 11.68% | 9.12% | |||||||||||||||||
| C000212967 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Institutional Class) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 26.56% | 11.68% | 9.12% | |||||||||||||||||
| C000212969 [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Class R6) – including sales charge | |||||||||||||||||||
| Account Value | $ 24,063 | 24,063 | $ 24,063 | $ 24,063 | 19,005 | 15,820 | 16,731 | 12,747 | 13,800 | 13,483 | 12,164 | 10,626 | 9,473 | 10,000 | ||||||
| Average Annual Return, Percent | 26.61% | 11.76% | 9.18% | |||||||||||||||||
| C000212969 [Member] | Without Sales Load [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Delaware Growth and Income Fund (Class R6) – excluding sales charge | |||||||||||||||||||
| Average Annual Return, Percent | 26.61% | 11.76% | 9.18% | |||||||||||||||||
| Russell 3000 Index [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 3000 Index | |||||||||||||||||||
| Account Value | $ 33,432 | $ 33,432 | $ 33,432 | $ 33,432 | 13,702 | 13,275 | 12,066 | 24,729 | 11,128 | 10,267 | 10,000 | 20,528 | 24,921 | 18,898 | 16,433 | 15,967 | 13,579 | 11,440 | 9,951 | 10,000 |
| Average Annual Return, Percent | 35.19% | 26.75% | 15.26% | 12.83% | ||||||||||||||||
| Russell 1000 Index [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000 Index | |||||||||||||||||||
| Account Value | $ 34,257 | $ 34,257 | $ 34,257 | $ 34,257 | 25,248 | 20,833 | 25,165 | 19,215 | 16,563 | 15,946 | 13,540 | 11,423 | 9,939 | 10,000 | ||||||
| Average Annual Return, Percent | 21.18% | 15.64% | 13.10% | |||||||||||||||||
| Russell Midcap Value Index [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Russell Midcap Value Index | |||||||||||||||||||
| Account Value | $ 23,528 | $ 23,528 | $ 23,528 | $ 23,528 | $ 11,264 | $ 11,660 | $ 10,774 | 18,237 | $ 10,059 | $ 9,685 | $ 10,000 | 16,423 | 18,998 | 13,342 | 14,392 | 14,165 | 13,019 | 11,484 | 9,793 | 10,000 |
| Average Annual Return, Percent | 29.01% | 14.49% | 10.33% | 8.93% | ||||||||||||||||
| Russell 1000 Value Index [Member] | ||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000 Value Index | |||||||||||||||||||
| Account Value | $ 24,183 | $ 24,183 | $ 24,183 | $ 24,183 | $ 18,929 | $ 16,540 | $ 18,661 | $ 13,822 | $ 14,553 | $ 13,993 | $ 12,785 | $ 11,105 | $ 9,558 | $ 10,000 | ||||||
| Average Annual Return, Percent | 27.76% | 10.69% | 9.23% |
| Shareholder Report, Holdings (Details) | Sep. 30, 2024 |
| C000212936 [Member] | DR Horton [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.72% |
| C000212936 [Member] | ITT [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212936 [Member] | KBR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212936 [Member] | Quanta Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.64% |
| C000212936 [Member] | Parker Hannifin [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.58% |
| C000212936 [Member] | CACI International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212936 [Member] | East West Bancorp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212936 [Member] | Hartford Financial Services Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.91% |
| C000212936 [Member] | Marriott International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.83% |
| C000212936 [Member] | Public Service Enterprise Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.77% |
| C000212936 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.19% |
| C000212936 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.37% |
| C000212936 [Member] | Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.27% |
| C000212936 [Member] | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.46% |
| C000212936 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.06% |
| C000212936 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.84% |
| C000212936 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.84% |
| C000212936 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.15% |
| C000212936 [Member] | Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.42% |
| C000212936 [Member] | Basic Industry [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.02% |
| C000212936 [Member] | Real Estate Investment Trusts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.36% |
| C000240403 [Member] | DR Horton [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.72% |
| C000240403 [Member] | ITT [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000240403 [Member] | KBR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000240403 [Member] | Quanta Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.64% |
| C000240403 [Member] | Parker Hannifin [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.58% |
| C000240403 [Member] | CACI International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000240403 [Member] | East West Bancorp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000240403 [Member] | Hartford Financial Services Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.91% |
| C000240403 [Member] | Marriott International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.83% |
| C000240403 [Member] | Public Service Enterprise Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.77% |
| C000240403 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.19% |
| C000240403 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.37% |
| C000240403 [Member] | Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.27% |
| C000240403 [Member] | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.46% |
| C000240403 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.06% |
| C000240403 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.84% |
| C000240403 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.84% |
| C000240403 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.15% |
| C000240403 [Member] | Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.42% |
| C000240403 [Member] | Basic Industry [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.02% |
| C000240403 [Member] | Real Estate Investment Trusts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.36% |
| C000240404 [Member] | DR Horton [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.72% |
| C000240404 [Member] | ITT [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000240404 [Member] | KBR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000240404 [Member] | Quanta Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.64% |
| C000240404 [Member] | Parker Hannifin [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.58% |
| C000240404 [Member] | CACI International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000240404 [Member] | East West Bancorp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000240404 [Member] | Hartford Financial Services Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.91% |
| C000240404 [Member] | Marriott International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.83% |
| C000240404 [Member] | Public Service Enterprise Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.77% |
| C000240404 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.19% |
| C000240404 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.37% |
| C000240404 [Member] | Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.27% |
| C000240404 [Member] | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.46% |
| C000240404 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.06% |
| C000240404 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.84% |
| C000240404 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.84% |
| C000240404 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.15% |
| C000240404 [Member] | Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.42% |
| C000240404 [Member] | Basic Industry [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.02% |
| C000240404 [Member] | Real Estate Investment Trusts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.36% |
| C000212938 [Member] | DR Horton [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.72% |
| C000212938 [Member] | ITT [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212938 [Member] | KBR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212938 [Member] | Quanta Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.64% |
| C000212938 [Member] | Parker Hannifin [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.58% |
| C000212938 [Member] | CACI International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212938 [Member] | East West Bancorp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212938 [Member] | Hartford Financial Services Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.91% |
| C000212938 [Member] | Marriott International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.83% |
| C000212938 [Member] | Public Service Enterprise Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.77% |
| C000212938 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.19% |
| C000212938 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.37% |
| C000212938 [Member] | Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.27% |
| C000212938 [Member] | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.46% |
| C000212938 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.06% |
| C000212938 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.84% |
| C000212938 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.84% |
| C000212938 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.15% |
| C000212938 [Member] | Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.42% |
| C000212938 [Member] | Basic Industry [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.02% |
| C000212938 [Member] | Real Estate Investment Trusts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.36% |
| C000212937 [Member] | DR Horton [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.72% |
| C000212937 [Member] | ITT [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212937 [Member] | KBR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.66% |
| C000212937 [Member] | Quanta Services [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.64% |
| C000212937 [Member] | Parker Hannifin [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.58% |
| C000212937 [Member] | CACI International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212937 [Member] | East West Bancorp [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.53% |
| C000212937 [Member] | Hartford Financial Services Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.91% |
| C000212937 [Member] | Marriott International Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.83% |
| C000212937 [Member] | Public Service Enterprise Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.77% |
| C000212937 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.19% |
| C000212937 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.37% |
| C000212937 [Member] | Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.27% |
| C000212937 [Member] | Transportation Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.46% |
| C000212937 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.06% |
| C000212937 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.84% |
| C000212937 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.84% |
| C000212937 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.15% |
| C000212937 [Member] | Utilities Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.42% |
| C000212937 [Member] | Basic Industry [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.02% |
| C000212937 [Member] | Real Estate Investment Trusts [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.36% |
| C000212968 [Member] | Exxon Mobil [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.62% |
| C000212968 [Member] | Philip Morris International [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.73% |
| C000212968 [Member] | Cigna Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.99% |
| C000212968 [Member] | Cisco Systems [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.91% |
| C000212968 [Member] | Gilead Sciences [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.49% |
| C000212968 [Member] | Bristol Myers Squibb [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.02% |
| C000212968 [Member] | Merck And Co [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.94% |
| C000212968 [Member] | Verizon Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.84% |
| C000212968 [Member] | Comcast Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000212968 [Member] | CVS Health [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.47% |
| C000212968 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.61% |
| C000212968 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.92% |
| C000212968 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.68% |
| C000212968 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.88% |
| C000212968 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.52% |
| C000212968 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.72% |
| C000212968 [Member] | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.32% |
| C000212968 [Member] | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.61% |
| C000212968 [Member] | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.68% |
| C000212967 [Member] | Exxon Mobil [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.62% |
| C000212967 [Member] | Philip Morris International [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.73% |
| C000212967 [Member] | Cigna Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.99% |
| C000212967 [Member] | Cisco Systems [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.91% |
| C000212967 [Member] | Gilead Sciences [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.49% |
| C000212967 [Member] | Bristol Myers Squibb [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.02% |
| C000212967 [Member] | Merck And Co [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.94% |
| C000212967 [Member] | Verizon Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.84% |
| C000212967 [Member] | Comcast Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000212967 [Member] | CVS Health [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.47% |
| C000212967 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.61% |
| C000212967 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.92% |
| C000212967 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.68% |
| C000212967 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.88% |
| C000212967 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.52% |
| C000212967 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.72% |
| C000212967 [Member] | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.32% |
| C000212967 [Member] | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.61% |
| C000212967 [Member] | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.68% |
| C000212969 [Member] | Exxon Mobil [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.62% |
| C000212969 [Member] | Philip Morris International [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.73% |
| C000212969 [Member] | Cigna Group [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.99% |
| C000212969 [Member] | Cisco Systems [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.91% |
| C000212969 [Member] | Gilead Sciences [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.49% |
| C000212969 [Member] | Bristol Myers Squibb [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.02% |
| C000212969 [Member] | Merck And Co [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.94% |
| C000212969 [Member] | Verizon Communications [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.84% |
| C000212969 [Member] | Comcast Class A [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000212969 [Member] | CVS Health [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.47% |
| C000212969 [Member] | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.61% |
| C000212969 [Member] | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.92% |
| C000212969 [Member] | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.68% |
| C000212969 [Member] | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.88% |
| C000212969 [Member] | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.52% |
| C000212969 [Member] | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.72% |
| C000212969 [Member] | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.32% |
| C000212969 [Member] | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.61% |
| C000212969 [Member] | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.68% |
