MFS Series Trust Vii N-CSR25 Sep 24Certified annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
Form N-CSR Cover	Jul. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	MFS SERIES TRUST VII
Entity Central Index Key	0000318874
Document Period End Date	Jul. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended
Shareholder Report	Jul. 31, 2024 USD ($) Holding
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	MFS SERIES TRUST VII
Entity Central Index Key	0000318874
Document Period End Date	Jul. 31, 2024
C000224114 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging Markets Equity Research Fund
Class Name	Class A
Trading Symbol	EEMPX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A $ 1.25 %
Expenses Paid, Amount	$ 127
Expense Ratio, Percent	1.25%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class A shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.44%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class A over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* A without sales charge 3.44 ) % (4.94 ) % A with initial sales charge (5.75%) (2.51 ) % (6.56 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 ) % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/a
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[1]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224117 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class C
Trading Symbol	EEMRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C $ 2.00 %
Expenses Paid, Amount	$ 203
Expense Ratio, Percent	2%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class C shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 2.71%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class C over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* C without sales charge 2.71 % (5.65 ) % C with CDSC (1% for 12 months) × 1.71 % (5.65 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc. × Assuming redemption at the end of the applicable period. CDSC – Contingent Deferred Sales Charge.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/c
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[2]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224115 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class I
Trading Symbol	EEMIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I $ 1.00 %
Expenses Paid, Amount	$ 102
Expense Ratio, Percent	1%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class I shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.82%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class I over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* I without sales charge 3.82 % (4.70 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/i
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[3]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224118 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class R1
Trading Symbol	EEMDX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R1 $ 2.00 %
Expenses Paid, Amount	$ 203
Expense Ratio, Percent	2%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R1 shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 2.73%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R1 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R1 without sales charge 2.73 % (5.64 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r1
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[4]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224113 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class R2
Trading Symbol	EEMEX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R2 $ 1.50 %
Expenses Paid, Amount	$ 152
Expense Ratio, Percent	1.50%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R2 shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.19%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R2 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R2 without sales charge 3.19 % (5.18 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r2
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[5]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224112 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class R3
Trading Symbol	EEMFX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R3 $ 1.25 %
Expenses Paid, Amount	$ 127
Expense Ratio, Percent	1.25%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R3 shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.57%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R3 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R3 without sales charge 3.57 % (4.93 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r3
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[6]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224111 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class R4
Trading Symbol	EEMGX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R4 $ 1.00 %
Expenses Paid, Amount	$ 102
Expense Ratio, Percent	1%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R4 shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.69%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R4 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R4 without sales charge 3.69 % (4.70 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r4
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[7]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000224116 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Emerging MarketsEquity Research Fund
Class Name	Class R6
Trading Symbol	EEMHX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Emerging Markets Equity Research Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Material Fund Change Notice [Text Block]	This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R6 $ 0.99 %
Expenses Paid, Amount	$ 101
Expense Ratio, Percent	0.99%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R6 shares of the MFS Emerging Markets Equity Research Fund (fund) provided a total return of 3.83%, at net asset value. This compares with a return of 6.27% for the fund’s benchmark, the MSCI Emerging Markets Index (net div). As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the MSCI Emerging Markets Index: Stock selection within the information technology sector was a primary contributor to relative performance. The combination of security selection and an underweight position in the materials sector also strengthened relative results. Top detractors from performance relative to the MSCI Emerging Markets Index: Stock selection within the financials sector was a primary detractor from relative performance. Security selection and an overweight position in the consumer staples sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R6 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R6 without sales charge 3.83 % (4.66 ) % Comparative Benchmark(s) MSCI Emerging Markets Index (net div) ∆ 6.27 % (4.59 ) % * For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 23, 2021
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Material Change Date	Aug. 01, 2023
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r6
Net Assets	$ 3,100,114
Holdings Count \| Holding	67
Advisory Fees Paid, Amount	$ 26,016	[8]
Investment Company Portfolio Turnover	33%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 3,100,114 Total Management Fee ($)#: 26,016 Total Number of Holdings: 67 Portfolio Turnover Rate (%): 33 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 97.9 % Money Market Funds 2.1 % Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 % Issuer country weightings China 20.1 % India 18.5 % Taiwan 14.7 % South Korea 11.5 % Brazil 6.5 % Hong Kong 3.8 % Mexico 3.8 % Indonesia 3.5 % Greece 3.0 % Other Countries 14.6 %
Largest Holdings [Text Block]	Top ten holdings Taiwan Semiconductor Manufacturing Co. Ltd. 11.9 % Samsung Electronics Co. Ltd. 7.1 % Tencent Holdings Ltd. 4.8 % Reliance Industries Ltd. 3.8 % Mahindra & Mahindra Ltd. 2.7 % PT Bank Negara Indonesia (Persero) Tbk 2.1 % Techtronic Industries Co. Ltd. 2.1 % KB Financial Group, Inc. 2.0 % Hellenic Telecommunications Organization S.A. 1.9 % BYD Co. Ltd. 1.9 %
Material Fund Change [Text Block]	MATERIAL FUND CHANGES This is a summary of certain changes to the fund since August 1, 2023. For more complete information, you may review the fund's prospectus as amended, which is available at funds.mfs.com or upon request at 1‑800‑225‑2606. The fund was reclassified from a non-diversified fund to a diversified fund under the Investment Company Act of 1940, as amended, by operation of law. Please see the fund's prospectus for details.
Updated Prospectus Phone Number	1‑800‑225‑2606
Updated Prospectus Web Address	funds.mfs.com
C000232773 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class A
Trading Symbol	UIVVX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A $ 0.89 %
Expenses Paid, Amount	$ 96
Expense Ratio, Percent	0.89%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class A shares of the MFS Intrinsic Value Fund (fund) provided a total return of 16.20%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class A over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* A without sales charge 16.20 % 8.18 % A with initial sales charge (5.75%) 9.52 % 5.62 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/a
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[9]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232776 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class C
Trading Symbol	UIVCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C $ 1.64 %
Expenses Paid, Amount	$ 177
Expense Ratio, Percent	1.64%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class C shares of the MFS Intrinsic Value Fund (fund) provided a total return of 15.38%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class C over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* C without sales charge 15.38 % 7.38 % C with CDSC (1% for 12 months) × 14.38 % 7.38 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc. × Assuming redemption at the end of the applicable period. CDSC – Contingent Deferred Sales Charge.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/c
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[10]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232775 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class I
Trading Symbol	UIVIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I $ 0.64 %
Expenses Paid, Amount	$ 69
Expense Ratio, Percent	0.64%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class I shares of the MFS Intrinsic Value Fund (fund) provided a total return of 16.56%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class I over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* I without sales charge 16.56 % 8.44 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/i
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[11]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232774 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class R1
Trading Symbol	UIVMX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R1 $ 1.64 %
Expenses Paid, Amount	$ 177
Expense Ratio, Percent	1.64%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R1 shares of the MFS Intrinsic Value Fund (fund) provided a total return of 15.38%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R1 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R1 without sales charge 15.38 % 7.38 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r1
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[12]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232777 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class R2
Trading Symbol	UIVNX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R2 $ 1.14 %
Expenses Paid, Amount	$ 123
Expense Ratio, Percent	1.14%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R2 shares of the MFS Intrinsic Value Fund (fund) provided a total return of 15.87%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R2 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R2 without sales charge 15.87 % 7.92 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r2
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[13]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232772 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class R3
Trading Symbol	UIVPX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R3 $ 0.89 %
Expenses Paid, Amount	$ 96
Expense Ratio, Percent	0.89%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R3 shares of the MFS Intrinsic Value Fund (fund) provided a total return of 16.22%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R3 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R3 without sales charge 16.22 % 8.18 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r3
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[14]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232771 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class R4
Trading Symbol	UIVQX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R4 $ 0.64 %
Expenses Paid, Amount	$ 69
Expense Ratio, Percent	0.64%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R4 shares of the MFS Intrinsic Value Fund (fund) provided a total return of 16.45%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R4 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R4 without sales charge 16.45 % 8.44 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r4
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[15]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000232770 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Intrinsic Value Fund
Class Name	Class R6
Trading Symbol	UIVRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Intrinsic Value Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R6 $ 0.62 %
Expenses Paid, Amount	$ 67
Expense Ratio, Percent	0.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R6 shares of the MFS Intrinsic Value Fund (fund) provided a total return of 16.57%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: An underweight position in the consumer discretionary sector was a primary contributor to relative performance. Security selection within the consumer staples sector also helped relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: Stock selection within both the information technology and financials sectors detracted from relative performance. A combination of the fund's underweight position and stock selection within the communication services sector further weakened relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment* This graph shows the performance of a hypothetical $10,000 investment in Class R6 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr Life* R6 without sales charge 16.57 % 8.49 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 10.52 % * For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024. ∆ Source: FactSet Research Systems Inc.
Performance Inception Date	Feb. 08, 2022
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r6
Net Assets	$ 5,137,946
Holdings Count \| Holding	85
Advisory Fees Paid, Amount	$ 26,312	[16]
Investment Company Portfolio Turnover	16%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 5,137,946 Total Management Fee ($)#: 26,312 Total Number of Holdings: 85 Portfolio Turnover Rate (%): 16 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 96.3 % Money Market Funds 3.7 % GICS equity sectors Information Technology 26.8 % Financials 19.4 % Industrials 16.6 % Materials 9.4 % Health Care 7.9 % Consumer Staples 6.2 % Consumer Discretionary 4.4 % Energy 2.7 % Communication Services 1.9 % Real Estate 1.0 % Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 6.3 % Amazon.com, Inc. 3.5 % Colgate-Palmolive Co. 2.8 % Cadence Design Systems, Inc. 2.7 % Mastercard, Inc., "A" 2.7 % Analog Devices, Inc. 2.3 % Charles Schwab Corp. 2.1 % Agilent Technologies, Inc. 2.0 % Vulcan Materials Co. 2.0 % Synopsys, Inc. 1.9 %
C000118291 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class A
Trading Symbol	EQNAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A $ 0.87 %
Expenses Paid, Amount	$ 95
Expense Ratio, Percent	0.87%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class A shares of the MFS Equity Income Fund (fund) provided a total return of 18.28%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class A over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr A without sales charge 18.28 % 12.83 % 9.87 % A with initial sales charge (5.75%) 11.48 % 11.50 % 9.22 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/a
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[17]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118292 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class B
Trading Symbol	EQNBX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment B $ 1.62 %
Expenses Paid, Amount	$ 176
Expense Ratio, Percent	1.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class B shares of the MFS Equity Income Fund (fund) provided a total return of 17.37%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class B over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr B without sales charge 17.37 % 11.98 % 9.06 % B with CDSC (declining over six years from 4% to 0%) × 13.37 % 11.72 % 9.06 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc. × Assuming redemption at the end of the applicable period. CDSC – Contingent Deferred Sales Charge.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/b
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[18]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118293 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class C
Trading Symbol	EQNCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C $ 1.62 %
Expenses Paid, Amount	$ 176
Expense Ratio, Percent	1.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class C shares of the MFS Equity Income Fund (fund) provided a total return of 17.36%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class C over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr C without sales charge 17.36 % 11.99 % 9.05 % C with CDSC (1% for 12 months) × 16.36 % 11.99 % 9.05 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc. × Assuming redemption at the end of the applicable period. CDSC – Contingent Deferred Sales Charge.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/c
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[19]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118294 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class I
Trading Symbol	EQNIX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I $ 0.62 %
Expenses Paid, Amount	$ 68
Expense Ratio, Percent	0.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class I shares of the MFS Equity Income Fund (fund) provided a total return of 18.50%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class I over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr I without sales charge 18.50 % 13.10 % 10.15 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/i
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[20]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118295 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class R1
Trading Symbol	EQNRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R1 $ 1.62 %
Expenses Paid, Amount	$ 176
Expense Ratio, Percent	1.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R1 shares of the MFS Equity Income Fund (fund) provided a total return of 17.35%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class R1 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr R1 without sales charge 17.35 % 11.98 % 9.05 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r1
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[21]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118296 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class R2
Trading Symbol	EQNSX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R2 $ 1.12 %
Expenses Paid, Amount	$ 122
Expense Ratio, Percent	1.12%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R2 shares of the MFS Equity Income Fund (fund) provided a total return of 17.90%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class R2 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr R2 without sales charge 17.90 % 12.53 % 9.59 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r2
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[22]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118297 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class R3
Trading Symbol	EQNTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R3 $ 0.87 %
Expenses Paid, Amount	$ 95
Expense Ratio, Percent	0.87%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R3 shares of the MFS Equity Income Fund (fund) provided a total return of 18.23%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class R3 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr R3 without sales charge 18.23 % 12.82 % 9.86 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r3
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[23]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118298 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class R4
Trading Symbol	EQNUX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R4 $ 0.62 %
Expenses Paid, Amount	$ 68
Expense Ratio, Percent	0.62%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R4 shares of the MFS Equity Income Fund (fund) provided a total return of 18.55%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class R4 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr R4 without sales charge 18.55 % 13.10 % 10.14 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r4
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[24]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 % MFS uses the Global Industry Classification Standard (GICS ®
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
C000118299 [Member]
Shareholder Report [Line Items]
Fund Name	MFS® Equity Income Fund
Class Name	Class R6
Trading Symbol	EQNVX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about MFS Equity Income Fund for the period of August 1, 2023 to July 31, 2024.
Shareholder Report Annual or Semi-Annual	annual shareholder report
Additional Information [Text Block]	You can find additional information about the fund at funds.mfs.com
Additional Information Phone Number	1‑800‑225‑2606
Additional Information Email	orderliterature@mfs.com
Additional Information Website	funds.mfs.com
Expenses [Text Block]	FUND EXPENSES What were the fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R6 $ 0.55 %
Expenses Paid, Amount	$ 60
Expense Ratio, Percent	0.55%
Factors Affecting Performance [Text Block]	MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE For the twelve months ended July 31, 2024, Class R6 shares of the MFS Equity Income Fund (fund) provided a total return of 18.63%, at net asset value. This compares with a return of 22.15% for the fund’s benchmark, the Standard & Poor's 500 Stock Index. As inflation moderated around the globe during the reporting period, several major central banks began to ease monetary policy. Geopolitical strains remained high amid ongoing conflicts in Ukraine and in the Middle East, while relations between China and the US remained tense. The US sought to restrict the flow of advanced technologies to China and China looked to use its industrial overcapacity to increase exports to developed markets to bolster its slow-growing domestic economy. Global equity markets reached record levels toward the end of the period as they withstood the adversity of the unsettled geopolitical climate and higher interest rate environment amidst optimism over wide-scale adoption of artificial intelligence. However, markets fell back a bit amid concerns over excessive valuations and slowing economic growth. Top contributors to performance relative to the Standard & Poor's 500 Stock Index: Stock selection within the financials sector was a primary contributor to relative performance. An underweight position in the consumer discretionary sector and favorable stock selection within the energy, utilities, and health care sectors also strengthened relative results. Top detractors from performance relative to the Standard & Poor's 500 Stock Index: The combination of an underweight position and weak stock selection within the information technology sector detracted from relative performance. Security selection within the industrials, communication services, and materials sectors also held back relative returns.
Performance Past Does Not Indicate Future [Text]	The fund’s past performance is not a good predictor of the fund’s future performance.
Line Graph [Table Text Block]	FUND PERFORMANCE The fund’s past performance is not a good predictor of the fund’s future performance. Growth of a Hypothetical $10,000 Investment This graph shows the performance of a hypothetical $10,000 investment in Class R6 over a ten year period or since inception, if shorter, in comparison to a broad measure of market performance. This graph includes the deduction of the maximum applicable sales charge, if any.
Average Annual Return [Table Text Block]	Average Annual Total Returns through 7/31/24 This table shows the average annual total returns of the class of shares noted for the periods shown, both with (if any) and without sales charges. It also shows the average annual total returns of a broad measure of market performance over the same periods. Share Class 1-yr 5-yr 10-yr R6 without sales charge 18.63 % 13.19 % 10.26 % Comparative Benchmark(s) Standard & Poor's 500 Stock Index ∆ 22.15 % 15.00 % 13.15 % ∆ Source: FactSet Research Systems Inc.
No Deduction of Taxes [Text Block]	The graph and table below do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares.
Updated Performance Information Location [Text Block]	Visit mfs.com/perf/r6
Net Assets	$ 577,275,514
Holdings Count \| Holding	87
Advisory Fees Paid, Amount	$ 2,307,289	[25]
Investment Company Portfolio Turnover	45%
Additional Fund Statistics [Text Block]	FUND STATISTICS AS OF 7/31/24 Net Assets ($): 577,275,514 Total Management Fee ($)#: 2,307,289 Total Number of Holdings: 87 Portfolio Turnover Rate (%): 45 ♯ Where the fund holds derivatives, they are not included in the total number of portfolio holdings.
Holdings [Text Block]	PORTFOLIO COMPOSITION (BASED ON TOTAL INVESTMENTS AS OF 7/31/24) Portfolio structure Equities 98.7 % Money Market Funds 1.3 % GICS equity sectors Financials 22.4 % Information Technology 16.7 % Health Care 15.3 % Industrials 10.7 % Consumer Staples 6.6 % Consumer Discretionary 5.7 % Energy 5.7 % Communication Services 5.1 % Real Estate 4.6 % Utilities 3.6 % Materials 2.3 % Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %
Largest Holdings [Text Block]	Top ten holdings Microsoft Corp. 4.5 % JPMorgan Chase & Co. 3.5 % Apple, Inc. 3.4 % Alphabet, Inc., "A" 2.5 % Cigna Group 2.4 % AbbVie, Inc. 2.4 % Pfizer, Inc. 2.4 % Wells Fargo & Co. 2.4 % Home Depot, Inc. 2.3 % McKesson Corp. 2.2 %

[1]Includes the effect of any management fee waivers.[2]Includes the effect of any management fee waivers.[3]Includes the effect of any management fee waivers.[4]Includes the effect of any management fee waivers.[5]Includes the effect of any management fee waivers.[6]Includes the effect of any management fee waivers.[7]Includes the effect of any management fee waivers.[8]Includes the effect of any management fee waivers.[9]Includes the effect of any management fee waivers.[10]Includes the effect of any management fee waivers.[11]Includes the effect of any management fee waivers.[12]Includes the effect of any management fee waivers.[13]Includes the effect of any management fee waivers.[14]Includes the effect of any management fee waivers.[15]Includes the effect of any management fee waivers.[16]Includes the effect of any management fee waivers.[17]Includes the effect of any management fee waivers.[18]Includes the effect of any management fee waivers.[19]Includes the effect of any management fee waivers.[20]Includes the effect of any management fee waivers.[21]Includes the effect of any management fee waivers.[22]Includes the effect of any management fee waivers.[23]Includes the effect of any management fee waivers.[24]Includes the effect of any management fee waivers.[25]Includes the effect of any management fee waivers.

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)		12 Months Ended		30 Months Ended				41 Months Ended		60 Months Ended		120 Months Ended
Shareholder Report, Line Graph (Details) - USD ($)		Jul. 31, 2024		Jul. 31, 2024		Jul. 31, 2024		Jul. 31, 2024		Jul. 31, 2024		Jul. 31, 2024		Jul. 31, 2023	Jul. 31, 2022	Feb. 08, 2022	Jul. 31, 2021	Feb. 23, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
C000224114 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A with initial sales charge (5.75%)
Average Annual Return, Percent		(2.51%)						(6.56%)	[1]
C000224114 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A without sales charge
Account Value		$ 7,920		$ 7,920		$ 7,920		$ 7,920		$ 7,920		$ 7,920		$ 7,657	$ 6,943		$ 8,690	$ 9,425
Average Annual Return, Percent		3.44%						(4.94%)	[1]
C000224117 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C with CDSC (1% for 12 months)
Average Annual Return, Percent	[2]	1.71%						(5.65%)	[3]
C000224117 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C without sales charge
Account Value		$ 8,189		8,189		8,189		$ 8,189		8,189		8,189		7,973	7,287		9,190	10,000
Average Annual Return, Percent		2.71%						(5.65%)	[3]
C000224115 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		I without sales charge
Account Value		$ 8,475		8,475		8,475		$ 8,475		8,475		8,475		8,163	7,382		9,230	10,000
Average Annual Return, Percent		3.82%						(4.70%)	[4]
C000224118 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R1 without sales charge
Account Value		$ 8,192		8,192		8,192		$ 8,192		8,192		8,192		7,975	7,287		9,190	10,000
Average Annual Return, Percent		2.73%						(5.64%)	[5]
C000224113 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R2 without sales charge
Account Value		$ 8,329		8,329		8,329		$ 8,329		8,329		8,329		8,072	7,340		9,210	10,000
Average Annual Return, Percent		3.19%						(5.18%)	[6]
C000224112 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R3 without sales charge
Account Value		$ 8,407		8,407		8,407		$ 8,407		8,407		8,407		8,118	7,366		9,220	10,000
Average Annual Return, Percent		3.57%						(4.93%)	[7]
C000224111 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R4 without sales charge
Account Value		$ 8,475		8,475		8,475		$ 8,475		8,475		8,475		8,173	7,392		9,230	10,000
Average Annual Return, Percent		3.69%						(4.70%)	[8]
C000224116 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R6 without sales charge
Account Value		$ 8,487		8,487		$ 8,487		$ 8,487		8,487		8,487		8,174	7,392		9,230	10,000
Average Annual Return, Percent		3.83%						(4.66%)	[9]
C000232773 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A with initial sales charge (5.75%)
Average Annual Return, Percent		9.52%				5.62%	[10]
C000232773 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A without sales charge
Account Value		$ 11,452		11,452		$ 11,452		$ 11,452		11,452		11,452		9,856	8,822	$ 9,425
Average Annual Return, Percent		16.20%				8.18%	[10]
C000232776 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C with CDSC (1% for 12 months)
Average Annual Return, Percent	[11]	14.38%				7.38%	[12]
C000232776 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C without sales charge
Account Value		$ 11,930		11,930		$ 11,930		11,930		11,930		11,930		10,340	9,320	10,000
Average Annual Return, Percent		15.38%				7.38%	[12]
C000232775 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		I without sales charge
Account Value		$ 12,225		12,225		$ 12,225		12,225		12,225		12,225		10,488	9,370	10,000
Average Annual Return, Percent		16.56%				8.44%	[13]
C000232774 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R1 without sales charge
Account Value		$ 11,930		11,930		$ 11,930		11,930		11,930		11,930		10,340	9,320	10,000
Average Annual Return, Percent		15.38%				7.38%	[14]
C000232777 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R2 without sales charge
Account Value		$ 12,079		12,079		$ 12,079		12,079		12,079		12,079		10,424	9,350	10,000
Average Annual Return, Percent		15.87%				7.92%	[15]
C000232772 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R3 without sales charge
Account Value		$ 12,152		12,152		$ 12,152		12,152		12,152		12,152		10,456	9,360	10,000
Average Annual Return, Percent		16.22%				8.18%	[16]
C000232771 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R4 without sales charge
Account Value		$ 12,225		12,225		$ 12,225		12,225		12,225		12,225		10,498	9,370	10,000
Average Annual Return, Percent		16.45%				8.44%	[17]
C000232770 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R6 without sales charge
Account Value		$ 12,238		12,238		$ 12,238		12,238		$ 12,238		$ 12,238		10,499	9,370	10,000
Average Annual Return, Percent		16.57%				8.49%	[18]
C000118291 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A with initial sales charge (5.75%)
Average Annual Return, Percent		11.48%								11.50%		9.22%
C000118291 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		A without sales charge
Account Value		$ 24,158		24,158		$ 24,158		24,158		$ 24,158		$ 24,158		20,425	18,287		18,584		$ 13,434	$ 13,210	$ 12,873	$ 11,614	$ 10,136	$ 9,983	$ 9,425
Average Annual Return, Percent		18.28%								12.83%		9.87%
C000118292 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		B with CDSC (declining over six years from 4% to 0%)
Average Annual Return, Percent	[19]	13.37%								11.72%		9.06%
C000118292 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		B without sales charge
Account Value		$ 23,794		23,794		23,794		23,794		$ 23,794		$ 23,794		20,272	18,286		18,720		13,638	13,514	13,267	12,054	10,605	10,518	10,000
Average Annual Return, Percent		17.37%								11.98%		9.06%
C000118293 [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C with CDSC (1% for 12 months)
Average Annual Return, Percent	[20]	16.36%								11.99%		9.05%
C000118293 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		C without sales charge
Account Value		$ 23,787		23,787		23,787		23,787		$ 23,787		$ 23,787		20,268	18,273		18,716		13,635	13,506	13,262	12,050	10,600	10,517	10,000
Average Annual Return, Percent		17.36%								11.99%		9.05%
C000118294 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		I without sales charge
Account Value		$ 26,283		26,283		26,283		26,283		$ 26,283		$ 26,283		22,180	19,801		20,073		14,477	14,200	13,811	12,421	10,804	10,616	10,000
Average Annual Return, Percent		18.50%								13.10%		10.15%
C000118295 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R1 without sales charge
Account Value		$ 23,779		23,779		23,779		23,779		$ 23,779		$ 23,779		20,263	18,279		18,713		13,632	13,508	13,262	12,047	10,597	10,512	10,000
Average Annual Return, Percent		17.35%								11.98%		9.05%
C000118296 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R2 without sales charge
Account Value		$ 24,990		24,990		24,990		24,990		$ 24,990		$ 24,990		21,195	19,011		19,377		14,049	13,847	13,524	12,225	10,699	10,570	10,000
Average Annual Return, Percent		17.90%								12.53%		9.59%
C000118297 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R3 without sales charge
Account Value		$ 25,616		25,616		25,616		25,616		$ 25,616		$ 25,616		21,665	19,392		19,710		14,253	14,016	13,665	12,317	10,752	10,589	10,000
Average Annual Return, Percent		18.23%								12.82%		9.86%
C000118298 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R4 without sales charge
Account Value		$ 26,272		26,272		26,272		26,272		$ 26,272		$ 26,272		22,161	19,784		20,064		14,472	14,195	13,798	12,410	10,805	10,622	10,000
Average Annual Return, Percent		18.55%								13.10%		10.14%
C000118299 [Member] \| Without Sales Load [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		R6 without sales charge
Account Value		$ 26,547		26,547		26,547		26,547		$ 26,547		$ 26,547		22,377	19,967		20,226		14,576	14,285	13,867	12,466	10,835	10,630	10,000
Average Annual Return, Percent		18.63%								13.19%		10.26%
MSCI Emerging Markets Index net div [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		MSCI Emerging Markets Index (net div)
Account Value		$ 8,508		8,508		8,508		$ 8,508		$ 8,508		$ 8,508		8,007	7,390		9,247	$ 10,000
Average Annual Return, Percent	[21]	6.27%						(4.59%)	[1]
Standard And Poors 500 Stock Index [Member]
Account Value [Line Items]
Line Graph and Table Measure Name		Standard & Poor's 500 Stock Index
Account Value		$ 34,403		$ 34,403		$ 34,403		$ 34,403		$ 34,403		$ 34,403		28,165	24,921	$ 10,000	$ 26,134		$ 19,153	$ 17,108	$ 15,843	$ 13,629	$ 11,745	$ 11,121	$ 10,000
Average Annual Return, Percent		22.15%	[22],[23]	10.52%	[16],[24]	10.52%	[10],[25]			15%	[22],[23]	13.15%	[22],[23]
Standard And Poors 500 Stock C000232773 Index [Member]
Account Value [Line Items]
Account Value		$ 12,813		$ 12,813		$ 12,813		12,813		$ 12,813		$ 12,813		10,490	9,282
Standard And Poors 500 Stock C000232776 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232775 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232774 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232777 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232772 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232771 Index [Member]
Account Value [Line Items]
Account Value		12,813		12,813		12,813		12,813		12,813		12,813		10,490	9,282
Standard And Poors 500 Stock C000232770 Index [Member]
Account Value [Line Items]
Account Value		$ 12,813		$ 12,813		$ 12,813		$ 12,813		$ 12,813		$ 12,813		$ 10,490	$ 9,282

[1]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[2]Assuming redemption at the end of the applicable period.[3]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[4]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[5]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[6]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[7]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[8]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[9]For the period from the commencement of the class's investment operations, February 23, 2021 through July 31, 2024.[10]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[11]Assuming redemption at the end of the applicable period.[12]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[13]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[14]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[15]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[16]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[17]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[18]For the period from the commencement of the class's investment operations, February 8, 2022 through July 31, 2024.[19]Assuming redemption at the end of the applicable period.[20]Assuming redemption at the end of the applicable period.[21]Source: FactSet Research Systems Inc.[22]Source: FactSet Research Systems Inc[23]Source: FactSet Research Systems Inc.[24]Source: FactSet Research Systems Inc.[25]Source: FactSet Research Systems Inc.

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jul. 31, 2024
C000224114 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224114 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224114 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224114 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224114 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224114 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224114 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224114 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224114 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224114 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224114 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224114 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224114 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224114 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224114 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224114 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224114 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224114 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224114 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224114 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224114 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224114 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224117 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224117 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224117 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224117 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224117 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224117 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224117 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224117 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224117 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224117 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224117 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224117 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224117 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224117 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224117 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224117 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224117 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224117 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224117 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224117 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224117 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224117 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224115 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224115 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224115 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224115 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224115 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224115 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224115 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224115 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224115 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224115 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224115 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224115 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224115 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224115 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224115 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224115 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224115 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224115 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224115 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224115 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224115 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224115 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224118 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224118 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224118 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224118 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224118 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224118 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224118 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224118 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224118 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224118 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224118 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224118 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224118 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224118 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224118 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224118 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224118 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224118 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224118 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224118 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224118 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224118 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224113 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224113 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224113 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224113 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224113 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224113 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224113 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224113 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224113 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224113 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224113 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224113 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224113 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224113 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224113 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224113 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224113 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224113 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224113 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224113 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224113 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224113 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224112 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224112 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224112 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224112 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224112 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224112 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224112 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224112 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224112 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224112 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224112 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224112 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224112 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224112 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224112 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224112 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224112 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224112 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224112 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224112 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224112 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224112 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224111 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224111 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224111 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224111 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224111 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224111 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224111 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224111 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224111 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224111 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224111 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224111 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224111 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224111 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224111 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224111 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224111 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224111 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224111 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224111 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224111 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224111 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224116 [Member] \| Taiwan Semiconductor Manufacturing Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	11.90%
C000224116 [Member] \| Samsung Electronics Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	7.10%
C000224116 [Member] \| Tencent Holdings Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	4.80%
C000224116 [Member] \| Reliance Industries Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224116 [Member] \| Mahindra And Mahindra Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000224116 [Member] \| PT Bank Negara Indonesia Persero Tbk [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224116 [Member] \| Techtronic Industries Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000224116 [Member] \| KB Financial Group Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000224116 [Member] \| Hellenic Telecommunications Organization S A [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224116 [Member] \| BYD Co Ltd [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000224116 [Member] \| Other Countries [Member]
Holdings [Line Items]
Percent of Total Investments	14.60%
C000224116 [Member] \| BRAZIL
Holdings [Line Items]
Percent of Total Investments	6.50%
C000224116 [Member] \| CHINA
Holdings [Line Items]
Percent of Total Investments	20.10%
C000224116 [Member] \| GREECE
Holdings [Line Items]
Percent of Total Investments	3%
C000224116 [Member] \| HONG KONG
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224116 [Member] \| INDONESIA
Holdings [Line Items]
Percent of Total Investments	3.50%
C000224116 [Member] \| INDIA
Holdings [Line Items]
Percent of Total Investments	18.50%
C000224116 [Member] \| KOREA, REPUBLIC OF
Holdings [Line Items]
Percent of Total Investments	11.50%
C000224116 [Member] \| MEXICO
Holdings [Line Items]
Percent of Total Investments	3.80%
C000224116 [Member] \| TAIWAN
Holdings [Line Items]
Percent of Total Investments	14.70%
C000224116 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	97.90%
C000224116 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232773 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232773 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232773 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232773 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232773 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232773 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232773 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232773 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232773 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232773 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232773 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232773 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232773 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232773 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232773 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232773 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232773 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232773 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232773 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232773 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232773 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232773 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232776 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232776 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232776 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232776 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232776 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232776 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232776 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232776 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232776 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232776 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232776 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232776 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232776 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232776 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232776 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232776 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232776 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232776 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232776 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232776 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232776 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232776 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232775 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232775 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232775 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232775 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232775 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232775 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232775 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232775 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232775 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232775 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232775 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232775 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232775 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232775 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232775 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232775 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232775 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232775 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232775 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232775 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232775 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232775 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232774 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232774 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232774 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232774 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232774 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232774 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232774 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232774 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232774 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232774 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232774 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232774 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232774 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232774 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232774 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232774 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232774 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232774 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232774 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232774 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232774 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232774 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232777 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232777 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232777 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232777 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232777 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232777 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232777 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232777 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232777 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232777 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232777 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232777 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232777 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232777 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232777 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232777 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232777 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232777 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232777 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232777 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232777 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232777 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232772 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232772 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232772 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232772 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232772 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232772 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232772 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232772 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232772 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232772 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232772 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232772 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232772 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232772 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232772 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232772 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232772 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232772 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232772 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232772 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232772 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232772 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232771 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232771 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232771 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232771 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232771 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232771 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232771 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232771 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232771 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232771 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232771 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232771 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232771 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232771 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232771 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232771 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232771 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232771 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232771 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232771 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232771 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232771 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000232770 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	6.30%
C000232770 [Member] \| Amazon com Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000232770 [Member] \| Colgate Palmolive Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.80%
C000232770 [Member] \| Cadence Design Systems Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232770 [Member] \| Mastercard Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232770 [Member] \| Analog Devices Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000232770 [Member] \| Charles Schwab Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.10%
C000232770 [Member] \| Agilent Technologies Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232770 [Member] \| Vulcan Materials Co [Member]
Holdings [Line Items]
Percent of Total Investments	2%
C000232770 [Member] \| Synopsys Inc [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232770 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.70%
C000232770 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	7.90%
C000232770 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1%
C000232770 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	1.90%
C000232770 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.40%
C000232770 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.20%
C000232770 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.60%
C000232770 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	26.80%
C000232770 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	9.40%
C000232770 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	19.40%
C000232770 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	96.30%
C000232770 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	3.70%
C000118291 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118291 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118291 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118291 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118291 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118291 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118291 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118291 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118291 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118291 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118291 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118291 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118291 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118291 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118291 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118291 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118291 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118291 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118291 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118291 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118291 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118291 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118291 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118292 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118292 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118292 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118292 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118292 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118292 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118292 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118292 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118292 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118292 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118292 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118292 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118292 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118292 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118292 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118292 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118292 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118292 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118292 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118292 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118292 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118292 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118292 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118293 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118293 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118293 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118293 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118293 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118293 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118293 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118293 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118293 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118293 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118293 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118293 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118293 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118293 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118293 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118293 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118293 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118293 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118293 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118293 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118293 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118293 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118293 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118294 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118294 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118294 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118294 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118294 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118294 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118294 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118294 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118294 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118294 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118294 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118294 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118294 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118294 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118294 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118294 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118294 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118294 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118294 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118294 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118294 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118294 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118294 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118295 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118295 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118295 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118295 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118295 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118295 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118295 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118295 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118295 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118295 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118295 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118295 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118295 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118295 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118295 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118295 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118295 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118295 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118295 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118295 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118295 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118295 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118295 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118296 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118296 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118296 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118296 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118296 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118296 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118296 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118296 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118296 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118296 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118296 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118296 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118296 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118296 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118296 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118296 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118296 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118296 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118296 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118296 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118296 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118296 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118296 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118297 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118297 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118297 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118297 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118297 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118297 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118297 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118297 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118297 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118297 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118297 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118297 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118297 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118297 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118297 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118297 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118297 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118297 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118297 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118297 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118297 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118297 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118297 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118298 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118298 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118298 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118298 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118298 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118298 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118298 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118298 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118298 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118298 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118298 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118298 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118298 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118298 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118298 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118298 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118298 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118298 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118298 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118298 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118298 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118298 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118298 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%
C000118299 [Member] \| Microsoft Corp [Member]
Holdings [Line Items]
Percent of Total Investments	4.50%
C000118299 [Member] \| JPMorgan Chase And Co [Member]
Holdings [Line Items]
Percent of Total Investments	3.50%
C000118299 [Member] \| Apple Inc [Member]
Holdings [Line Items]
Percent of Total Investments	3.40%
C000118299 [Member] \| Alphabet Inc A [Member]
Holdings [Line Items]
Percent of Total Investments	2.50%
C000118299 [Member] \| Cigna Group [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118299 [Member] \| AbbVie Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118299 [Member] \| Pfizer Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118299 [Member] \| Wells Fargo And Co [Member]
Holdings [Line Items]
Percent of Total Investments	2.40%
C000118299 [Member] \| Home Depot Inc [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118299 [Member] \| McKesson Corp [Member]
Holdings [Line Items]
Percent of Total Investments	2.20%
C000118299 [Member] \| Energy Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118299 [Member] \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Total Investments	15.30%
C000118299 [Member] \| Real Estate Sector [Member]
Holdings [Line Items]
Percent of Total Investments	4.60%
C000118299 [Member] \| Communications Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.10%
C000118299 [Member] \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Total Investments	5.70%
C000118299 [Member] \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Total Investments	6.60%
C000118299 [Member] \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Total Investments	10.70%
C000118299 [Member] \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Total Investments	16.70%
C000118299 [Member] \| Materials Sector [Member]
Holdings [Line Items]
Percent of Total Investments	2.30%
C000118299 [Member] \| Financials [Member]
Holdings [Line Items]
Percent of Total Investments	22.40%
C000118299 [Member] \| Utilities Sector [Member]
Holdings [Line Items]
Percent of Total Investments	3.60%
C000118299 [Member] \| Equity [Member]
Holdings [Line Items]
Percent of Total Investments	98.70%
C000118299 [Member] \| Money Market Funds [Member]
Holdings [Line Items]
Percent of Total Investments	1.30%