Shareholder Report
|
6 Months Ended |
|
Jun. 30, 2026
USD ($)
Holding
|
|---|
| Shareholder Report [Line Items] |
|
| Document Type |
N-CSRS
|
| Amendment Flag |
false
|
| Registrant Name |
Natixis Funds Trust II
|
| Entity Central Index Key |
0000052136
|
| Entity Investment Company Type |
N-1A
|
| Document Period End Date |
Jun. 30, 2026
|
| Shareholder Report Annual or Semi-Annual |
Semi-annual Shareholder Report
|
| C000094853 |
|
| Shareholder Report [Line Items] |
|
| Fund Name |
Loomis Sayles Strategic Alpha Fund
|
| Class Name |
Class A
|
| Trading Symbol |
LABAX
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote 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%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 1,161,670,427
|
| Holdings Count | Holding |
997
|
| Advisory Fees Paid, Amount |
$ 3,051,957
|
| InvestmentCompanyPortfolioTurnover |
25.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$1,161,670,427
- # of Portfolio Holdings (including overnight repurchase agreements and derivatives)997
- Portfolio Turnover Rate25%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,051,957
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
36.2% |
Short-Term Investments |
13.3% |
Pharmaceuticals |
3.0% |
Equity-Linked Notes |
3.2% |
Non-Agency Commercial Mortgage-Backed Securities |
3.3% |
Cable Satellite |
4.2% |
Banking |
4.5% |
Collateralized Loan Obligations |
6.2% |
ABS Other |
7.0% |
Technology |
8.8% |
Treasuries |
10.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency contracts, and futures contracts) | Credit QualityFootnote Reference*Footnote Reference†
Table Summary
Value |
Value |
Cash & equivalents |
14.1 |
US Treasury |
6.3 |
Not ratedFootnote Reference^ |
22.5 |
CC |
0.1 |
CCC |
1.5 |
B |
5.0 |
BB |
10.2 |
BBB |
26.3 |
A |
10.2 |
AA |
3.9 |
AAA |
1.7 |
| 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. |
Footnote^ |
Not Rated category represents only those securities not rated by S&P Global Ratings. Such securities may be rated by other NRSROs not shown here. | |
| 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] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.95% from 0.98%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.95% from 0.98%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class C |
$86 |
1.73% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 86
|
| Expense Ratio, Percent |
1.73%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 1,161,670,427
|
| Holdings Count | Holding |
997
|
| Advisory Fees Paid, Amount |
$ 3,051,957
|
| InvestmentCompanyPortfolioTurnover |
25.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$1,161,670,427
- # of Portfolio Holdings (including overnight repurchase agreements and derivatives)997
- Portfolio Turnover Rate25%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,051,957
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
36.2% |
Short-Term Investments |
13.3% |
Pharmaceuticals |
3.0% |
Equity-Linked Notes |
3.2% |
Non-Agency Commercial Mortgage-Backed Securities |
3.3% |
Cable Satellite |
4.2% |
Banking |
4.5% |
Collateralized Loan Obligations |
6.2% |
ABS Other |
7.0% |
Technology |
8.8% |
Treasuries |
10.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency contracts, and futures contracts) | Credit QualityFootnote Reference*Footnote Reference†
Table Summary
Value |
Value |
Cash & equivalents |
14.1 |
US Treasury |
6.3 |
Not ratedFootnote Reference^ |
22.5 |
CC |
0.1 |
CCC |
1.5 |
B |
5.0 |
BB |
10.2 |
BBB |
26.3 |
A |
10.2 |
AA |
3.9 |
AAA |
1.7 |
| 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. |
Footnote^ |
Not Rated category represents only those securities not rated by S&P Global Ratings. Such securities may be rated by other NRSROs not shown here. | |
| 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] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.70% from 1.73%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.70% from 1.73%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote 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%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 1,161,670,427
|
| Holdings Count | Holding |
997
|
| Advisory Fees Paid, Amount |
$ 3,051,957
|
| InvestmentCompanyPortfolioTurnover |
25.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$1,161,670,427
- # of Portfolio Holdings (including overnight repurchase agreements and derivatives)997
- Portfolio Turnover Rate25%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,051,957
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
36.2% |
Short-Term Investments |
13.3% |
Pharmaceuticals |
3.0% |
Equity-Linked Notes |
3.2% |
Non-Agency Commercial Mortgage-Backed Securities |
3.3% |
Cable Satellite |
4.2% |
Banking |
4.5% |
Collateralized Loan Obligations |
6.2% |
ABS Other |
7.0% |
Technology |
8.8% |
Treasuries |
10.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency contracts, and futures contracts) | Credit QualityFootnote Reference*Footnote Reference†
Table Summary
Value |
Value |
Cash & equivalents |
14.1 |
US Treasury |
6.3 |
Not ratedFootnote Reference^ |
22.5 |
CC |
0.1 |
CCC |
1.5 |
B |
5.0 |
BB |
10.2 |
BBB |
26.3 |
A |
10.2 |
AA |
3.9 |
AAA |
1.7 |
| 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. |
Footnote^ |
Not Rated category represents only those securities not rated by S&P Global Ratings. Such securities may be rated by other NRSROs not shown here. | |
| 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] |
For the six months ended June 30, 2026, 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: Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.65% from 0.68%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter. |
| Material Fund Change Expenses [Text Block] |
Expenses: Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.65% from 0.68%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class Y |
$36 |
0.73% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 36
|
| Expense Ratio, Percent |
0.73%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 1,161,670,427
|
| Holdings Count | Holding |
997
|
| Advisory Fees Paid, Amount |
$ 3,051,957
|
| InvestmentCompanyPortfolioTurnover |
25.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$1,161,670,427
- # of Portfolio Holdings (including overnight repurchase agreements and derivatives)997
- Portfolio Turnover Rate25%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,051,957
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
36.2% |
Short-Term Investments |
13.3% |
Pharmaceuticals |
3.0% |
Equity-Linked Notes |
3.2% |
Non-Agency Commercial Mortgage-Backed Securities |
3.3% |
Cable Satellite |
4.2% |
Banking |
4.5% |
Collateralized Loan Obligations |
6.2% |
ABS Other |
7.0% |
Technology |
8.8% |
Treasuries |
10.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities (including open written options, swap agreement, forward foreign currency contracts, and futures contracts) | Credit QualityFootnote Reference*Footnote Reference†
Table Summary
Value |
Value |
Cash & equivalents |
14.1 |
US Treasury |
6.3 |
Not ratedFootnote Reference^ |
22.5 |
CC |
0.1 |
CCC |
1.5 |
B |
5.0 |
BB |
10.2 |
BBB |
26.3 |
A |
10.2 |
AA |
3.9 |
AAA |
1.7 |
| 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. |
Footnote^ |
Not Rated category represents only those securities not rated by S&P Global Ratings. Such securities may be rated by other NRSROs not shown here. | |
| 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] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.70% from 0.73%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.70% from 0.73%. Fees: Effective July 1, 2026, the advisory fee rate as a percentage of average daily net assets will be 0.57% on the first $1.25 billion of assets, and 0.55% thereafter.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class A |
$51 |
1.03% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 51
|
| Expense Ratio, Percent |
1.03%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 924,140,601
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 3,216,782
|
| InvestmentCompanyPortfolioTurnover |
16.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$924,140,601
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate16%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,216,782
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
33.7% |
Short-Term Investments |
3.9% |
Passenger Airlines |
3.2% |
Hotels, Restaurants & Leisure |
3.5% |
Health Care Equipment & Supplies |
3.7% |
Beverages |
3.9% |
Software |
4.8% |
Oil, Gas & Consumable Fuels |
5.7% |
Financial Services |
5.8% |
Consumer Finance |
6.2% |
Insurance |
7.5% |
Banks |
8.2% |
Capital Markets |
9.9% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Targa Resources Corp. |
3.3% |
Delta Air Lines, Inc. |
3.2% |
Keurig Dr. Pepper, Inc. |
3.0% |
Airbnb, Inc., Class A |
2.9% |
Citigroup, Inc. |
2.9% |
Merck & Co., Inc. |
2.9% |
Elevance Health, Inc. |
2.8% |
Corteva, Inc. |
2.7% |
Ally Financial, Inc. |
2.5% |
Capital One Financial Corp. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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. Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets. |
| Material Fund Change Expenses [Text Block] |
Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class C |
$88 |
1.78% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 88
|
| Expense Ratio, Percent |
1.78%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 924,140,601
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 3,216,782
|
| InvestmentCompanyPortfolioTurnover |
16.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$924,140,601
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate16%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,216,782
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
33.7% |
Short-Term Investments |
3.9% |
Passenger Airlines |
3.2% |
Hotels, Restaurants & Leisure |
3.5% |
Health Care Equipment & Supplies |
3.7% |
Beverages |
3.9% |
Software |
4.8% |
Oil, Gas & Consumable Fuels |
5.7% |
Financial Services |
5.8% |
Consumer Finance |
6.2% |
Insurance |
7.5% |
Banks |
8.2% |
Capital Markets |
9.9% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Targa Resources Corp. |
3.3% |
Delta Air Lines, Inc. |
3.2% |
Keurig Dr. Pepper, Inc. |
3.0% |
Airbnb, Inc., Class A |
2.9% |
Citigroup, Inc. |
2.9% |
Merck & Co., Inc. |
2.9% |
Elevance Health, Inc. |
2.8% |
Corteva, Inc. |
2.7% |
Ally Financial, Inc. |
2.5% |
Capital One Financial Corp. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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. Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets. |
| Material Fund Change Expenses [Text Block] |
Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class N |
$36 |
0.73% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 36
|
| Expense Ratio, Percent |
0.73%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 924,140,601
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 3,216,782
|
| InvestmentCompanyPortfolioTurnover |
16.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$924,140,601
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate16%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,216,782
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
33.7% |
Short-Term Investments |
3.9% |
Passenger Airlines |
3.2% |
Hotels, Restaurants & Leisure |
3.5% |
Health Care Equipment & Supplies |
3.7% |
Beverages |
3.9% |
Software |
4.8% |
Oil, Gas & Consumable Fuels |
5.7% |
Financial Services |
5.8% |
Consumer Finance |
6.2% |
Insurance |
7.5% |
Banks |
8.2% |
Capital Markets |
9.9% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Targa Resources Corp. |
3.3% |
Delta Air Lines, Inc. |
3.2% |
Keurig Dr. Pepper, Inc. |
3.0% |
Airbnb, Inc., Class A |
2.9% |
Citigroup, Inc. |
2.9% |
Merck & Co., Inc. |
2.9% |
Elevance Health, Inc. |
2.8% |
Corteva, Inc. |
2.7% |
Ally Financial, Inc. |
2.5% |
Capital One Financial Corp. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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. Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets. |
| Material Fund Change Expenses [Text Block] |
Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class Y |
$39 |
0.78% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 39
|
| Expense Ratio, Percent |
0.78%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 924,140,601
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 3,216,782
|
| InvestmentCompanyPortfolioTurnover |
16.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$924,140,601
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate16%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$3,216,782
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
33.7% |
Short-Term Investments |
3.9% |
Passenger Airlines |
3.2% |
Hotels, Restaurants & Leisure |
3.5% |
Health Care Equipment & Supplies |
3.7% |
Beverages |
3.9% |
Software |
4.8% |
Oil, Gas & Consumable Fuels |
5.7% |
Financial Services |
5.8% |
Consumer Finance |
6.2% |
Insurance |
7.5% |
Banks |
8.2% |
Capital Markets |
9.9% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Targa Resources Corp. |
3.3% |
Delta Air Lines, Inc. |
3.2% |
Keurig Dr. Pepper, Inc. |
3.0% |
Airbnb, Inc., Class A |
2.9% |
Citigroup, Inc. |
2.9% |
Merck & Co., Inc. |
2.9% |
Elevance Health, Inc. |
2.8% |
Corteva, Inc. |
2.7% |
Ally Financial, Inc. |
2.5% |
Capital One Financial Corp. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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. Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets. |
| Material Fund Change Expenses [Text Block] |
Fees: Effective July 1, 2026, the Fund’s Board of Trustees approved a proposal to reduce the advisory fee rate to 0.59% on all asset and the sub-advisory fee rate was reduced to 0.472% on all assets.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class A |
$64 |
1.15% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 64
|
| Expense Ratio, Percent |
1.15%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 244,994,250
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 611,968
|
| InvestmentCompanyPortfolioTurnover |
55.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$244,994,250
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate55%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$611,968
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
14.9% |
Technology Hardware, Storage & Peripherals |
3.2% |
Machinery |
4.2% |
Hotels, Restaurants & Leisure |
4.9% |
Household Durables |
4.9% |
Energy Equipment & Services |
4.9% |
Construction & Engineering |
5.3% |
Specialty Retail |
5.7% |
Electronic Equipment, Instruments & Components |
5.8% |
Multi-Utilities |
6.0% |
Electric Utilities |
6.4% |
Semiconductors & Semiconductor Equipment |
8.0% |
Aerospace & Defense |
12.5% |
Electrical Equipment |
13.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Marvell Technology, Inc. |
3.9% |
Hubbell, Inc. |
3.6% |
Sandisk Corp. |
3.2% |
Evergy, Inc. |
3.2% |
Alliant Energy Corp. |
3.2% |
WEC Energy Group, Inc. |
3.0% |
CMS Energy Corp. |
3.0% |
Curtiss-Wright Corp. |
2.9% |
Burlington Stores, Inc. |
2.8% |
Royal Caribbean Cruises Ltd. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.10% from 1.15%. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.10% from 1.15%.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class C |
$106 |
1.90% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 106
|
| Expense Ratio, Percent |
1.90%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 244,994,250
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 611,968
|
| InvestmentCompanyPortfolioTurnover |
55.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$244,994,250
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate55%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$611,968
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
14.9% |
Technology Hardware, Storage & Peripherals |
3.2% |
Machinery |
4.2% |
Hotels, Restaurants & Leisure |
4.9% |
Household Durables |
4.9% |
Energy Equipment & Services |
4.9% |
Construction & Engineering |
5.3% |
Specialty Retail |
5.7% |
Electronic Equipment, Instruments & Components |
5.8% |
Multi-Utilities |
6.0% |
Electric Utilities |
6.4% |
Semiconductors & Semiconductor Equipment |
8.0% |
Aerospace & Defense |
12.5% |
Electrical Equipment |
13.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Marvell Technology, Inc. |
3.9% |
Hubbell, Inc. |
3.6% |
Sandisk Corp. |
3.2% |
Evergy, Inc. |
3.2% |
Alliant Energy Corp. |
3.2% |
WEC Energy Group, Inc. |
3.0% |
CMS Energy Corp. |
3.0% |
Curtiss-Wright Corp. |
2.9% |
Burlington Stores, Inc. |
2.8% |
Royal Caribbean Cruises Ltd. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.85% from 1.90%. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 1.85% from 1.90%.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class N |
$47 |
0.85% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 47
|
| Expense Ratio, Percent |
0.85%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 244,994,250
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 611,968
|
| InvestmentCompanyPortfolioTurnover |
55.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$244,994,250
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate55%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$611,968
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
14.9% |
Technology Hardware, Storage & Peripherals |
3.2% |
Machinery |
4.2% |
Hotels, Restaurants & Leisure |
4.9% |
Household Durables |
4.9% |
Energy Equipment & Services |
4.9% |
Construction & Engineering |
5.3% |
Specialty Retail |
5.7% |
Electronic Equipment, Instruments & Components |
5.8% |
Multi-Utilities |
6.0% |
Electric Utilities |
6.4% |
Semiconductors & Semiconductor Equipment |
8.0% |
Aerospace & Defense |
12.5% |
Electrical Equipment |
13.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Marvell Technology, Inc. |
3.9% |
Hubbell, Inc. |
3.6% |
Sandisk Corp. |
3.2% |
Evergy, Inc. |
3.2% |
Alliant Energy Corp. |
3.2% |
WEC Energy Group, Inc. |
3.0% |
CMS Energy Corp. |
3.0% |
Curtiss-Wright Corp. |
2.9% |
Burlington Stores, Inc. |
2.8% |
Royal Caribbean Cruises Ltd. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.80% from 0.85%. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.80% from 0.85%.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
| 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, 2026 to June 30, 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.
|
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
|
| 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; text-align-last: auto; white-space-collapse: preserve-breaks;">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)
Table Summary
Class Name |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investmentFootnote Reference† |
Class Y |
$50 |
0.90% |
| Footnote |
Description |
Footnote† |
Annualized for periods less than one year (if applicable). | |
| Expenses Paid, Amount |
$ 50
|
| Expense Ratio, Percent |
0.90%
|
| Material Change Date |
Jun. 30, 2026
|
| AssetsNet |
$ 244,994,250
|
| Holdings Count | Holding |
59
|
| Advisory Fees Paid, Amount |
$ 611,968
|
| InvestmentCompanyPortfolioTurnover |
55.00%
|
| Additional Fund Statistics [Text Block] |
- Total Net Assets$244,994,250
- # of Portfolio Holdings (including overnight repurchase agreements)59
- Portfolio Turnover Rate55%
- Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$611,968
|
| Holdings [Text Block] |
Table Summary
Value |
Value |
Other investments less than 3% of net assetsFootnote Reference* |
14.9% |
Technology Hardware, Storage & Peripherals |
3.2% |
Machinery |
4.2% |
Hotels, Restaurants & Leisure |
4.9% |
Household Durables |
4.9% |
Energy Equipment & Services |
4.9% |
Construction & Engineering |
5.3% |
Specialty Retail |
5.7% |
Electronic Equipment, Instruments & Components |
5.8% |
Multi-Utilities |
6.0% |
Electric Utilities |
6.4% |
Semiconductors & Semiconductor Equipment |
8.0% |
Aerospace & Defense |
12.5% |
Electrical Equipment |
13.3% |
| Footnote |
Description |
Footnote* |
Net of other assets less liabilities | |
| Largest Holdings [Text Block] |
Table Summary
Marvell Technology, Inc. |
3.9% |
Hubbell, Inc. |
3.6% |
Sandisk Corp. |
3.2% |
Evergy, Inc. |
3.2% |
Alliant Energy Corp. |
3.2% |
WEC Energy Group, Inc. |
3.0% |
CMS Energy Corp. |
3.0% |
Curtiss-Wright Corp. |
2.9% |
Burlington Stores, Inc. |
2.8% |
Royal Caribbean Cruises Ltd. |
2.5% | |
| Material Fund Change [Text Block] |
For the six months ended June 30, 2026, 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: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.85% from 0.90%. |
| Material Fund Change Expenses [Text Block] |
Expenses: Effective July 1, 2026, the expense limit as a percentage of average daily net assets was reduced to 0.85% from 0.90%.
|
| Summary of Change Legend [Text Block] |
For the six months ended June 30, 2026, 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.
|
| Updated Prospectus Phone Number |
(800) 225-5478
|
| Updated Prospectus Web 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; text-align-last: auto; white-space-collapse: preserve-breaks;">im.natixis.com/funddocuments</span>
|
