This semi-annual shareholder report contains important information about Loomis Sayles Global Growth Fund for the period of December 1, 2025 to May 31, 2026.

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

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Expenses [Text Block]

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

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class A	$60	1.20%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 60

Expense Ratio, Percent

1.20%

AssetsNet

$ 126,465,452

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 369,943

InvestmentCompanyPortfolioTurnover

5.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$126,465,452
# of Portfolio Holdings (including overnight repurchase agreements)46
Portfolio Turnover Rate5%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$369,943

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	14.0%
Aerospace & Defense	3.8%
Entertainment	4.2%
IT Services	4.3%
Biotechnology	5.2%
Financial Services	6.2%
Semiconductors & Semiconductor Equipment	6.3%
Pharmaceuticals	6.7%
Automobiles	7.2%
Software	11.0%
Broadline Retail	11.5%
Interactive Media & Services	19.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Country Weightings

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	7.2%
Netherlands	4.0%
Canada	4.3%
China	5.7%
Brazil	6.5%
United States	72.3%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
Alphabet, Inc., Class A	9.3%
Amazon.com, Inc.	6.8%
Meta Platforms, Inc., Class A	6.8%
Tesla, Inc.	6.3%
Oracle Corp.	4.9%
MercadoLibre, Inc.	4.6%
Shopify, Inc., Class A	4.3%
Netflix, Inc.	4.2%
ARM Holdings PLC, ADR	4.0%
Boeing Co.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000167849

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Global Growth Fund

Class Name

Class C

Trading Symbol

LSCGX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Global Growth Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class C	$97	1.95%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 97

Expense Ratio, Percent

1.95%

AssetsNet

$ 126,465,452

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 369,943

InvestmentCompanyPortfolioTurnover

5.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$126,465,452
# of Portfolio Holdings (including overnight repurchase agreements)46
Portfolio Turnover Rate5%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$369,943

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	14.0%
Aerospace & Defense	3.8%
Entertainment	4.2%
IT Services	4.3%
Biotechnology	5.2%
Financial Services	6.2%
Semiconductors & Semiconductor Equipment	6.3%
Pharmaceuticals	6.7%
Automobiles	7.2%
Software	11.0%
Broadline Retail	11.5%
Interactive Media & Services	19.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Country Weightings

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	7.2%
Netherlands	4.0%
Canada	4.3%
China	5.7%
Brazil	6.5%
United States	72.3%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
Alphabet, Inc., Class A	9.3%
Amazon.com, Inc.	6.8%
Meta Platforms, Inc., Class A	6.8%
Tesla, Inc.	6.3%
Oracle Corp.	4.9%
MercadoLibre, Inc.	4.6%
Shopify, Inc., Class A	4.3%
Netflix, Inc.	4.2%
ARM Holdings PLC, ADR	4.0%
Boeing Co.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000188122

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Global Growth Fund

Class Name

Class N

Trading Symbol

LSNGX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Global Growth Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class N	$45	0.90%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 45

Expense Ratio, Percent

0.90%

AssetsNet

$ 126,465,452

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 369,943

InvestmentCompanyPortfolioTurnover

5.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$126,465,452
# of Portfolio Holdings (including overnight repurchase agreements)46
Portfolio Turnover Rate5%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$369,943

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	14.0%
Aerospace & Defense	3.8%
Entertainment	4.2%
IT Services	4.3%
Biotechnology	5.2%
Financial Services	6.2%
Semiconductors & Semiconductor Equipment	6.3%
Pharmaceuticals	6.7%
Automobiles	7.2%
Software	11.0%
Broadline Retail	11.5%
Interactive Media & Services	19.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Country Weightings

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	7.2%
Netherlands	4.0%
Canada	4.3%
China	5.7%
Brazil	6.5%
United States	72.3%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
Alphabet, Inc., Class A	9.3%
Amazon.com, Inc.	6.8%
Meta Platforms, Inc., Class A	6.8%
Tesla, Inc.	6.3%
Oracle Corp.	4.9%
MercadoLibre, Inc.	4.6%
Shopify, Inc., Class A	4.3%
Netflix, Inc.	4.2%
ARM Holdings PLC, ADR	4.0%
Boeing Co.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000167850

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Global Growth Fund

Class Name

Class Y

Trading Symbol

LSGGX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Global Growth Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class Y	$47	0.95%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 47

Expense Ratio, Percent

0.95%

AssetsNet

$ 126,465,452

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 369,943

InvestmentCompanyPortfolioTurnover

5.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$126,465,452
# of Portfolio Holdings (including overnight repurchase agreements)46
Portfolio Turnover Rate5%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$369,943

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	14.0%
Aerospace & Defense	3.8%
Entertainment	4.2%
IT Services	4.3%
Biotechnology	5.2%
Financial Services	6.2%
Semiconductors & Semiconductor Equipment	6.3%
Pharmaceuticals	6.7%
Automobiles	7.2%
Software	11.0%
Broadline Retail	11.5%
Interactive Media & Services	19.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Country Weightings

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	7.2%
Netherlands	4.0%
Canada	4.3%
China	5.7%
Brazil	6.5%
United States	72.3%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
Alphabet, Inc., Class A	9.3%
Amazon.com, Inc.	6.8%
Meta Platforms, Inc., Class A	6.8%
Tesla, Inc.	6.3%
Oracle Corp.	4.9%
MercadoLibre, Inc.	4.6%
Shopify, Inc., Class A	4.3%
Netflix, Inc.	4.2%
ARM Holdings PLC, ADR	4.0%
Boeing Co.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000105118

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Senior Floating Rate and Fixed Income Fund

Class Name

Class A

Trading Symbol

LSFAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Senior Floating Rate and Fixed Income Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class A	$49	0.98%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 49

Expense Ratio, Percent

0.98%

AssetsNet

$ 446,243,595

Holdings Count | Holding

212

Advisory Fees Paid, Amount

$ 1,281,332

InvestmentCompanyPortfolioTurnover

53.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$446,243,595
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)212
Portfolio Turnover Rate53%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,281,332

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	22.0%
Short-Term Investments	5.7%
Exchange-Traded Fund	5.2%
Media Entertainment	4.3%
Cable Satellite	4.4%
Industrial Other	4.6%
Property & Casualty Insurance	6.0%
Collateralized Loan Obligations	6.1%
Retailers	7.0%
Healthcare	7.8%
Consumer Cyclical Services	8.7%
Technology	18.2%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including forward foreign currency contracts)

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Table Summary
Value	Value
Cash	5.7
NR	10.4
CCC	5.4
B	63.9
BB	17.3
BBB	0.5

Footnote	Description
Footnote^*	Percentages are calculated based on Net Assets. Totals may not add up to 100% due to other assets and liabilities, such as receivables and payables, not being included in the table.
Footnote^†	Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Credit Quality Explanation [Text Block]

Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000105119

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Senior Floating Rate and Fixed Income Fund

Class Name

Class C

Trading Symbol

LSFCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Senior Floating Rate and Fixed Income Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class C	$87	1.73%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 87

Expense Ratio, Percent

1.73%

AssetsNet

$ 446,243,595

Holdings Count | Holding

212

Advisory Fees Paid, Amount

$ 1,281,332

InvestmentCompanyPortfolioTurnover

53.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$446,243,595
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)212
Portfolio Turnover Rate53%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,281,332

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	22.0%
Short-Term Investments	5.7%
Exchange-Traded Fund	5.2%
Media Entertainment	4.3%
Cable Satellite	4.4%
Industrial Other	4.6%
Property & Casualty Insurance	6.0%
Collateralized Loan Obligations	6.1%
Retailers	7.0%
Healthcare	7.8%
Consumer Cyclical Services	8.7%
Technology	18.2%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including forward foreign currency contracts)

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Table Summary
Value	Value
Cash	5.7
NR	10.4
CCC	5.4
B	63.9
BB	17.3
BBB	0.5

Footnote	Description
Footnote^*	Percentages are calculated based on Net Assets. Totals may not add up to 100% due to other assets and liabilities, such as receivables and payables, not being included in the table.
Footnote^†	Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Credit Quality Explanation [Text Block]

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000188118

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Senior Floating Rate and Fixed Income Fund

Class Name

Class N

Trading Symbol

LSFNX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Senior Floating Rate and Fixed Income Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class N	$34	0.68%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 34

Expense Ratio, Percent

0.68%

AssetsNet

$ 446,243,595

Holdings Count | Holding

212

Advisory Fees Paid, Amount

$ 1,281,332

InvestmentCompanyPortfolioTurnover

53.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$446,243,595
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)212
Portfolio Turnover Rate53%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,281,332

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	22.0%
Short-Term Investments	5.7%
Exchange-Traded Fund	5.2%
Media Entertainment	4.3%
Cable Satellite	4.4%
Industrial Other	4.6%
Property & Casualty Insurance	6.0%
Collateralized Loan Obligations	6.1%
Retailers	7.0%
Healthcare	7.8%
Consumer Cyclical Services	8.7%
Technology	18.2%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including forward foreign currency contracts)

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Table Summary
Value	Value
Cash	5.7
NR	10.4
CCC	5.4
B	63.9
BB	17.3
BBB	0.5

Footnote	Description
Footnote^*	Percentages are calculated based on Net Assets. Totals may not add up to 100% due to other assets and liabilities, such as receivables and payables, not being included in the table.
Footnote^†	Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Credit Quality Explanation [Text Block]

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000105120

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Senior Floating Rate and Fixed Income Fund

Class Name

Class Y

Trading Symbol

LSFYX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Loomis Sayles Senior Floating Rate and Fixed Income Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class Y	$37	0.73%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 37

Expense Ratio, Percent

0.73%

AssetsNet

$ 446,243,595

Holdings Count | Holding

212

Advisory Fees Paid, Amount

$ 1,281,332

InvestmentCompanyPortfolioTurnover

53.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$446,243,595
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)212
Portfolio Turnover Rate53%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,281,332

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	22.0%
Short-Term Investments	5.7%
Exchange-Traded Fund	5.2%
Media Entertainment	4.3%
Cable Satellite	4.4%
Industrial Other	4.6%
Property & Casualty Insurance	6.0%
Collateralized Loan Obligations	6.1%
Retailers	7.0%
Healthcare	7.8%
Consumer Cyclical Services	8.7%
Technology	18.2%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including forward foreign currency contracts)

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Table Summary
Value	Value
Cash	5.7
NR	10.4
CCC	5.4
B	63.9
BB	17.3
BBB	0.5

Footnote	Description
Footnote^*	Percentages are calculated based on Net Assets. Totals may not add up to 100% due to other assets and liabilities, such as receivables and payables, not being included in the table.
Footnote^†	Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Credit Quality Explanation [Text Block]

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000115831

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Select Fund

Class Name

Class A

Trading Symbol

VNSAX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Select Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class A	$57	1.10%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 57

Expense Ratio, Percent

1.10%

AssetsNet

$ 578,183,782

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,794,789

InvestmentCompanyPortfolioTurnover

61.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$578,183,782
# of Portfolio Holdings (including overnight repurchase agreements)27
Portfolio Turnover Rate61%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,794,789

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	20.8%
Trading Companies & Distributors	3.0%
Specialty Retail	3.0%
Aerospace & Defense	3.2%
Metals & Mining	3.6%
Electrical Equipment	3.8%
Machinery	4.0%
Capital Markets	4.5%
Broadline Retail	4.5%
Financial Services	4.7%
Oil, Gas & Consumable Fuels	4.9%
Technology Hardware, Storage & Peripherals	5.4%
Pharmaceuticals	6.4%
Interactive Media & Services	9.2%
Semiconductors & Semiconductor Equipment	19.0%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
NVIDIA Corp.	8.6%
Alphabet, Inc., Class A	7.3%
Taiwan Semiconductor Manufacturing Co. Ltd., ADR	6.6%
Eli Lilly & Co.	6.4%
Apple, Inc.	5.5%
Exxon Mobil Corp.	4.9%
Amazon.com, Inc.	4.5%
Cummins, Inc.	4.0%
Eaton Corp. PLC	3.8%
Monolithic Power Systems, Inc.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000115832

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Select Fund

Class Name

Class C

Trading Symbol

VNSCX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Select Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class C	$95	1.85%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 95

Expense Ratio, Percent

1.85%

AssetsNet

$ 578,183,782

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,794,789

InvestmentCompanyPortfolioTurnover

61.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$578,183,782
# of Portfolio Holdings (including overnight repurchase agreements)27
Portfolio Turnover Rate61%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,794,789

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	20.8%
Trading Companies & Distributors	3.0%
Specialty Retail	3.0%
Aerospace & Defense	3.2%
Metals & Mining	3.6%
Electrical Equipment	3.8%
Machinery	4.0%
Capital Markets	4.5%
Broadline Retail	4.5%
Financial Services	4.7%
Oil, Gas & Consumable Fuels	4.9%
Technology Hardware, Storage & Peripherals	5.4%
Pharmaceuticals	6.4%
Interactive Media & Services	9.2%
Semiconductors & Semiconductor Equipment	19.0%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
NVIDIA Corp.	8.6%
Alphabet, Inc., Class A	7.3%
Taiwan Semiconductor Manufacturing Co. Ltd., ADR	6.6%
Eli Lilly & Co.	6.4%
Apple, Inc.	5.5%
Exxon Mobil Corp.	4.9%
Amazon.com, Inc.	4.5%
Cummins, Inc.	4.0%
Eaton Corp. PLC	3.8%
Monolithic Power Systems, Inc.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000188120

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Select Fund

Class Name

Class N

Trading Symbol

VNSNX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Select Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class N	$40	0.77%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 40

Expense Ratio, Percent

0.77%

AssetsNet

$ 578,183,782

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,794,789

InvestmentCompanyPortfolioTurnover

61.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$578,183,782
# of Portfolio Holdings (including overnight repurchase agreements)27
Portfolio Turnover Rate61%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,794,789

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	20.8%
Trading Companies & Distributors	3.0%
Specialty Retail	3.0%
Aerospace & Defense	3.2%
Metals & Mining	3.6%
Electrical Equipment	3.8%
Machinery	4.0%
Capital Markets	4.5%
Broadline Retail	4.5%
Financial Services	4.7%
Oil, Gas & Consumable Fuels	4.9%
Technology Hardware, Storage & Peripherals	5.4%
Pharmaceuticals	6.4%
Interactive Media & Services	9.2%
Semiconductors & Semiconductor Equipment	19.0%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
NVIDIA Corp.	8.6%
Alphabet, Inc., Class A	7.3%
Taiwan Semiconductor Manufacturing Co. Ltd., ADR	6.6%
Eli Lilly & Co.	6.4%
Apple, Inc.	5.5%
Exxon Mobil Corp.	4.9%
Amazon.com, Inc.	4.5%
Cummins, Inc.	4.0%
Eaton Corp. PLC	3.8%
Monolithic Power Systems, Inc.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000115833

Shareholder Report [Line Items]

Fund Name

Vaughan Nelson Select Fund

Class Name

Class Y

Trading Symbol

VNSYX

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Vaughan Nelson Select Fund for the period of December 1, 2025 to May 31, 2026.

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)

Table Summary
Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class Y	$44	0.85%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 44

Expense Ratio, Percent

0.85%

AssetsNet

$ 578,183,782

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 1,794,789

InvestmentCompanyPortfolioTurnover

61.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$578,183,782
# of Portfolio Holdings (including overnight repurchase agreements)27
Portfolio Turnover Rate61%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$1,794,789

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	20.8%
Trading Companies & Distributors	3.0%
Specialty Retail	3.0%
Aerospace & Defense	3.2%
Metals & Mining	3.6%
Electrical Equipment	3.8%
Machinery	4.0%
Capital Markets	4.5%
Broadline Retail	4.5%
Financial Services	4.7%
Oil, Gas & Consumable Fuels	4.9%
Technology Hardware, Storage & Peripherals	5.4%
Pharmaceuticals	6.4%
Interactive Media & Services	9.2%
Semiconductors & Semiconductor Equipment	19.0%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
NVIDIA Corp.	8.6%
Alphabet, Inc., Class A	7.3%
Taiwan Semiconductor Manufacturing Co. Ltd., ADR	6.6%
Eli Lilly & Co.	6.4%
Apple, Inc.	5.5%
Exxon Mobil Corp.	4.9%
Amazon.com, Inc.	4.5%
Cummins, Inc.	4.0%
Eaton Corp. PLC	3.8%
Monolithic Power Systems, Inc.	3.8%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

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

Key Fund Statistics

Industry Summary

Country Weightings

Top Ten Holdings

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Country Weightings

Top Ten Holdings

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Country Weightings

Top Ten Holdings

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Country Weightings

Top Ten Holdings

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Credit QualityFootnote Reference*Footnote Reference†

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Credit QualityFootnote Reference*Footnote Reference†

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Credit QualityFootnote Reference*Footnote Reference†

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Credit QualityFootnote Reference*Footnote Reference†

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Material Fund Changes

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

Key Fund Statistics

Industry Summary

Material Fund Changes

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Credit Quality^{Footnote Reference*}^{Footnote Reference†}