This semi-annual shareholder report contains important information about Loomis Sayles Strategic Alpha Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

You can find additional information (including tax information) about the Fund at im.natixis.com/funddocuments.You can also request the information by contacting us at 800-225-5478 or by contacting your financial intermediary directly.

Additional Information Phone Number

800-225-5478

Additional Information Website

<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">im.natixis.com/funddocuments</span>

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$50	1.00%

Expenses Paid, Amount

$ 50

Expense Ratio, Percent

1.00%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 547,044,122

Holdings Count | Holding

604

Advisory Fees Paid, Amount

$ 1,571,059

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$547,044,122
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)	604
Portfolio Turnover Rate	40%
Total Advisory Fees Paid	$1,571,059

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	38.2%
Finance Companies	3.3%
Technology	3.4%
Cable Satellite	4.0%
ABS Car Loan	4.2%
Banking	4.7%
ABS Other	5.2%
ABS Home Equity	5.9%
Non-Agency Commercial Mortgage-Backed Securities	7.0%
Collateralized Loan Obligations	9.4%
Treasuries	14.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency, and futures contracts)

Material Fund Change [Text Block]

Material Fund Changes

Effective July 1, 2024, the Fund had the following material changes, which were reported in a supplement to the Fund's prospectus. For more information, you may review the Fund's prospectus at im.natixis.com/funddocuments or upon request at 800-225-5478 or through your financial intermediary.

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.98% from 1.00%.

Material Fund Change Expenses [Text Block]

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.98% from 1.00%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

<span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">secretaryofthefunds@natixis.com</span>

Updated Prospectus Web Address

C000094854

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Strategic Alpha Fund

Class Name

Class C

Trading Symbol

LABCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Strategic Alpha Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$88	1.75%

Expenses Paid, Amount

$ 88

Expense Ratio, Percent

1.75%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 547,044,122

Holdings Count | Holding

604

Advisory Fees Paid, Amount

$ 1,571,059

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$547,044,122
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)	604
Portfolio Turnover Rate	40%
Total Advisory Fees Paid	$1,571,059

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	38.2%
Finance Companies	3.3%
Technology	3.4%
Cable Satellite	4.0%
ABS Car Loan	4.2%
Banking	4.7%
ABS Other	5.2%
ABS Home Equity	5.9%
Non-Agency Commercial Mortgage-Backed Securities	7.0%
Collateralized Loan Obligations	9.4%
Treasuries	14.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency, and futures contracts)

Material Fund Change [Text Block]

Material Fund Changes

Expenses:The expense limit as a percentage of average daily net assets was reduced to 1.73% from 1.75%.

Material Fund Change Expenses [Text Block]

Expenses:The expense limit as a percentage of average daily net assets was reduced to 1.73% from 1.75%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000190722

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Strategic Alpha Fund

Class Name

Class N

Trading Symbol

LASNX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Strategic Alpha Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class N	$35	0.70%

Expenses Paid, Amount

$ 35

Expense Ratio, Percent

0.70%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 547,044,122

Holdings Count | Holding

604

Advisory Fees Paid, Amount

$ 1,571,059

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$547,044,122
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)	604
Portfolio Turnover Rate	40%
Total Advisory Fees Paid	$1,571,059

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	38.2%
Finance Companies	3.3%
Technology	3.4%
Cable Satellite	4.0%
ABS Car Loan	4.2%
Banking	4.7%
ABS Other	5.2%
ABS Home Equity	5.9%
Non-Agency Commercial Mortgage-Backed Securities	7.0%
Collateralized Loan Obligations	9.4%
Treasuries	14.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency, and futures contracts)

Material Fund Change [Text Block]

Material Fund Changes

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.68% from 0.70%.

Material Fund Change Expenses [Text Block]

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.68% from 0.70%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000094855

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Strategic Alpha Fund

Class Name

Class Y

Trading Symbol

LASYX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Strategic Alpha Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class Y	$38	0.75%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.75%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 547,044,122

Holdings Count | Holding

604

Advisory Fees Paid, Amount

$ 1,571,059

InvestmentCompanyPortfolioTurnover

40.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$547,044,122
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)	604
Portfolio Turnover Rate	40%
Total Advisory Fees Paid	$1,571,059

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	38.2%
Finance Companies	3.3%
Technology	3.4%
Cable Satellite	4.0%
ABS Car Loan	4.2%
Banking	4.7%
ABS Other	5.2%
ABS Home Equity	5.9%
Non-Agency Commercial Mortgage-Backed Securities	7.0%
Collateralized Loan Obligations	9.4%
Treasuries	14.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency, and futures contracts)

Material Fund Change [Text Block]

Material Fund Changes

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.73% from 0.75%.

Material Fund Change Expenses [Text Block]

Expenses:The expense limit as a percentage of average daily net assets was reduced to 0.73% from 0.75%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000021802

Shareholder Report [Line Items]

Fund Name

Natixis Oakmark Fund

Class Name

Class A

Trading Symbol

NEFOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Natixis Oakmark Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$54	1.05%

Expenses Paid, Amount

$ 54

Expense Ratio, Percent

1.05%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 842,210,989

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,332,525

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$842,210,989
# of Portfolio Holdings (including overnight repurchase agreements)	55
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$2,332,525

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Short-Term Investments	4.7%
Health Care Providers & Services	3.1%
Chemicals	3.2%
Interactive Media & Services	3.7%
Financial Services	4.8%
Media	4.9%
Consumer Finance	5.1%
Insurance	5.5%
Oil, Gas & Consumable Fuels	9.1%
Banks	11.4%
Capital Markets	12.8%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Alphabet, Inc., Class A	3.7%
Citigroup, Inc.	3.1%
General Motors Co.	2.9%
Charles Schwab Corp.	2.9%
Wells Fargo & Co.	2.8%
Fiserv, Inc.	2.8%
Deere & Co.	2.7%
IQVIA Holdings, Inc.	2.6%
ConocoPhillips	2.6%
Intercontinental Exchange, Inc.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Expenses: The expense limit as a percentage of average daily net assets was reduced to 1.03% from 1.05%.

Material Fund Change Expenses [Text Block]

Expenses: The expense limit as a percentage of average daily net assets was reduced to 1.03% from 1.05%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000021804

Shareholder Report [Line Items]

Fund Name

Natixis Oakmark Fund

Class Name

Class C

Trading Symbol

NECOX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Natixis Oakmark Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$92	1.80%

Expenses Paid, Amount

$ 92

Expense Ratio, Percent

1.80%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 842,210,989

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,332,525

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$842,210,989
# of Portfolio Holdings (including overnight repurchase agreements)	55
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$2,332,525

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Short-Term Investments	4.7%
Health Care Providers & Services	3.1%
Chemicals	3.2%
Interactive Media & Services	3.7%
Financial Services	4.8%
Media	4.9%
Consumer Finance	5.1%
Insurance	5.5%
Oil, Gas & Consumable Fuels	9.1%
Banks	11.4%
Capital Markets	12.8%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Alphabet, Inc., Class A	3.7%
Citigroup, Inc.	3.1%
General Motors Co.	2.9%
Charles Schwab Corp.	2.9%
Wells Fargo & Co.	2.8%
Fiserv, Inc.	2.8%
Deere & Co.	2.7%
IQVIA Holdings, Inc.	2.6%
ConocoPhillips	2.6%
Intercontinental Exchange, Inc.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Expenses: The expense limit as a percentage of average daily net assets was reduced to 1.78% from 1.80%.

Material Fund Change Expenses [Text Block]

Expenses: The expense limit as a percentage of average daily net assets was reduced to 1.78% from 1.80%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000190720

Shareholder Report [Line Items]

Fund Name

Natixis Oakmark Fund

Class Name

Class N

Trading Symbol

NOANX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Natixis Oakmark Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class N	$38	0.75%

Expenses Paid, Amount

$ 38

Expense Ratio, Percent

0.75%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 842,210,989

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,332,525

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$842,210,989
# of Portfolio Holdings (including overnight repurchase agreements)	55
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$2,332,525

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Short-Term Investments	4.7%
Health Care Providers & Services	3.1%
Chemicals	3.2%
Interactive Media & Services	3.7%
Financial Services	4.8%
Media	4.9%
Consumer Finance	5.1%
Insurance	5.5%
Oil, Gas & Consumable Fuels	9.1%
Banks	11.4%
Capital Markets	12.8%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Alphabet, Inc., Class A	3.7%
Citigroup, Inc.	3.1%
General Motors Co.	2.9%
Charles Schwab Corp.	2.9%
Wells Fargo & Co.	2.8%
Fiserv, Inc.	2.8%
Deere & Co.	2.7%
IQVIA Holdings, Inc.	2.6%
ConocoPhillips	2.6%
Intercontinental Exchange, Inc.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Expenses: The expense limit as a percentage of average daily net assets was reduced to 0.73% from 0.75%.

Material Fund Change Expenses [Text Block]

Expenses: The expense limit as a percentage of average daily net assets was reduced to 0.73% from 0.75%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000021805

Shareholder Report [Line Items]

Fund Name

Natixis Oakmark Fund

Class Name

Class Y

Trading Symbol

NEOYX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Natixis Oakmark Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class Y	$41	0.80%

Expenses Paid, Amount

$ 41

Expense Ratio, Percent

0.80%

Material Change Description [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

AssetsNet

$ 842,210,989

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 2,332,525

InvestmentCompanyPortfolioTurnover

21.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$842,210,989
# of Portfolio Holdings (including overnight repurchase agreements)	55
Portfolio Turnover Rate	21%
Total Advisory Fees Paid	$2,332,525

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Short-Term Investments	4.7%
Health Care Providers & Services	3.1%
Chemicals	3.2%
Interactive Media & Services	3.7%
Financial Services	4.8%
Media	4.9%
Consumer Finance	5.1%
Insurance	5.5%
Oil, Gas & Consumable Fuels	9.1%
Banks	11.4%
Capital Markets	12.8%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Alphabet, Inc., Class A	3.7%
Citigroup, Inc.	3.1%
General Motors Co.	2.9%
Charles Schwab Corp.	2.9%
Wells Fargo & Co.	2.8%
Fiserv, Inc.	2.8%
Deere & Co.	2.7%
IQVIA Holdings, Inc.	2.6%
ConocoPhillips	2.6%
Intercontinental Exchange, Inc.	2.5%

Material Fund Change [Text Block]

Material Fund Changes

Expenses: The expense limit as a percentage of average daily net assets was reduced to 0.78% from 0.80%.

Material Fund Change Expenses [Text Block]

Expenses: The expense limit as a percentage of average daily net assets was reduced to 0.78% from 0.80%.

Summary of Change Legend [Text Block]

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000069913

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Mid Cap Fund

Class Name

Class A

Trading Symbol

VNVAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Mid Cap Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class A	$59	1.15%

Expenses Paid, Amount

$ 59

Expense Ratio, Percent

1.15%

AssetsNet

$ 248,815,838

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 797,120

InvestmentCompanyPortfolioTurnover

57.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$248,815,838
# of Portfolio Holdings (including overnight repurchase agreements)	59
Portfolio Turnover Rate	57%
Total Advisory Fees Paid	$797,120

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Software	3.0%
Metals & Mining	3.1%
Specialty Retail	3.2%
Machinery	3.5%
Banks	3.6%
Insurance	4.0%
Oil, Gas & Consumable Fuels	4.2%
Ground Transportation	4.5%
Electrical Equipment	4.6%
Building Products	5.9%
Capital Markets	6.5%
Life Sciences Tools & Services	7.1%
Hotels, Restaurants & Leisure	7.4%
Semiconductors & Semiconductor Equipment	7.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Royal Caribbean Cruises Ltd.	3.9%
Monolithic Power Systems, Inc.	3.7%
Constellium SE	3.1%
Nasdaq, Inc.	3.0%
Tyler Technologies, Inc.	3.0%
Corteva, Inc.	2.9%
Saia, Inc.	2.6%
IQVIA Holdings, Inc.	2.6%
Vulcan Materials Co.	2.6%
Marvell Technology, Inc.	2.4%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000069914

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Mid Cap Fund

Class Name

Class C

Trading Symbol

VNVCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Mid Cap Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class C	$97	1.90%

Expenses Paid, Amount

$ 97

Expense Ratio, Percent

1.90%

AssetsNet

$ 248,815,838

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 797,120

InvestmentCompanyPortfolioTurnover

57.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$248,815,838
# of Portfolio Holdings (including overnight repurchase agreements)	59
Portfolio Turnover Rate	57%
Total Advisory Fees Paid	$797,120

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Software	3.0%
Metals & Mining	3.1%
Specialty Retail	3.2%
Machinery	3.5%
Banks	3.6%
Insurance	4.0%
Oil, Gas & Consumable Fuels	4.2%
Ground Transportation	4.5%
Electrical Equipment	4.6%
Building Products	5.9%
Capital Markets	6.5%
Life Sciences Tools & Services	7.1%
Hotels, Restaurants & Leisure	7.4%
Semiconductors & Semiconductor Equipment	7.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Royal Caribbean Cruises Ltd.	3.9%
Monolithic Power Systems, Inc.	3.7%
Constellium SE	3.1%
Nasdaq, Inc.	3.0%
Tyler Technologies, Inc.	3.0%
Corteva, Inc.	2.9%
Saia, Inc.	2.6%
IQVIA Holdings, Inc.	2.6%
Vulcan Materials Co.	2.6%
Marvell Technology, Inc.	2.4%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000128764

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Mid Cap Fund

Class Name

Class N

Trading Symbol

VNVNX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Mid Cap Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class N	$44	0.85%

Expenses Paid, Amount

$ 44

Expense Ratio, Percent

0.85%

AssetsNet

$ 248,815,838

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 797,120

InvestmentCompanyPortfolioTurnover

57.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$248,815,838
# of Portfolio Holdings (including overnight repurchase agreements)	59
Portfolio Turnover Rate	57%
Total Advisory Fees Paid	$797,120

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Software	3.0%
Metals & Mining	3.1%
Specialty Retail	3.2%
Machinery	3.5%
Banks	3.6%
Insurance	4.0%
Oil, Gas & Consumable Fuels	4.2%
Ground Transportation	4.5%
Electrical Equipment	4.6%
Building Products	5.9%
Capital Markets	6.5%
Life Sciences Tools & Services	7.1%
Hotels, Restaurants & Leisure	7.4%
Semiconductors & Semiconductor Equipment	7.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Royal Caribbean Cruises Ltd.	3.9%
Monolithic Power Systems, Inc.	3.7%
Constellium SE	3.1%
Nasdaq, Inc.	3.0%
Tyler Technologies, Inc.	3.0%
Corteva, Inc.	2.9%
Saia, Inc.	2.6%
IQVIA Holdings, Inc.	2.6%
Vulcan Materials Co.	2.6%
Marvell Technology, Inc.	2.4%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address

C000069915

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Mid Cap Fund

Class Name

Class Y

Trading Symbol

VNVYX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Mid Cap Fund for the period of January 1, 2024 to June 30, 2024.

Shareholder Report Annual or Semi-Annual

Semi-annual Shareholder Report

Additional Information [Text Block]

Additional Information Phone Number

800-225-5478

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Class Name	Cost of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Class Y	$46	0.90%

Expenses Paid, Amount

$ 46

Expense Ratio, Percent

0.90%

AssetsNet

$ 248,815,838

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 797,120

InvestmentCompanyPortfolioTurnover

57.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$248,815,838
# of Portfolio Holdings (including overnight repurchase agreements)	59
Portfolio Turnover Rate	57%
Total Advisory Fees Paid	$797,120

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	31.7%
Software	3.0%
Metals & Mining	3.1%
Specialty Retail	3.2%
Machinery	3.5%
Banks	3.6%
Insurance	4.0%
Oil, Gas & Consumable Fuels	4.2%
Ground Transportation	4.5%
Electrical Equipment	4.6%
Building Products	5.9%
Capital Markets	6.5%
Life Sciences Tools & Services	7.1%
Hotels, Restaurants & Leisure	7.4%
Semiconductors & Semiconductor Equipment	7.7%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Royal Caribbean Cruises Ltd.	3.9%
Monolithic Power Systems, Inc.	3.7%
Constellium SE	3.1%
Nasdaq, Inc.	3.0%
Tyler Technologies, Inc.	3.0%
Corteva, Inc.	2.9%
Saia, Inc.	2.6%
IQVIA Holdings, Inc.	2.6%
Vulcan Materials Co.	2.6%
Marvell Technology, Inc.	2.4%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Updated Prospectus Phone Number

800-225-5478

Updated Prospectus Email Address

Updated Prospectus Web Address