This annual shareholder report contains important information about Loomis Sayles Global Growth Fund for the period of December 1, 2023 to November 30, 2024.

Shareholder Report Annual or Semi-Annual

Annual Shareholder Report

Additional Information [Text Block]

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

Additional Information Phone Number

(800) 225-5478

Additional Information Website

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Expenses [Text Block]

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

Class Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Class Y	$109	0.95%

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

Expenses Paid, Amount

$ 109

Expense Ratio, Percent

0.95%

Line Graph [Table Text Block]

	Class Y	MSCI All Country World Index (Net)
03/2016	$10,000	$10,000
04/2016	$10,120	$10,148
05/2016	$10,310	$10,160
06/2016	$10,370	$10,099
07/2016	$10,930	$10,534
08/2016	$11,010	$10,570
09/2016	$11,200	$10,634
10/2016	$10,810	$10,454
11/2016	$10,550	$10,533
12/2016	$10,608	$10,761
01/2017	$10,957	$11,055
02/2017	$11,305	$11,365
03/2017	$11,541	$11,504
04/2017	$12,002	$11,683
05/2017	$12,504	$11,941
06/2017	$12,515	$11,996
07/2017	$12,996	$12,331
08/2017	$13,037	$12,378
09/2017	$13,273	$12,617
10/2017	$13,447	$12,879
11/2017	$13,816	$13,129
12/2017	$14,003	$13,340
01/2018	$15,053	$14,093
02/2018	$14,449	$13,501
03/2018	$14,035	$13,212
04/2018	$14,025	$13,338
05/2018	$14,237	$13,355
06/2018	$14,300	$13,283
07/2018	$14,798	$13,683
08/2018	$14,936	$13,791
09/2018	$14,936	$13,851
10/2018	$13,717	$12,813
11/2018	$14,131	$13,000
12/2018	$13,064	$12,084
01/2019	$14,307	$13,039
02/2019	$14,829	$13,387
03/2019	$15,395	$13,556
04/2019	$16,083	$14,013
05/2019	$15,107	$13,182
06/2019	$16,217	$14,045
07/2019	$16,283	$14,087
08/2019	$15,917	$13,752
09/2019	$15,850	$14,042
10/2019	$15,950	$14,426
11/2019	$16,483	$14,778
12/2019	$17,060	$15,299
01/2020	$17,189	$15,130
02/2020	$16,050	$13,908
03/2020	$14,594	$12,030
04/2020	$16,273	$13,319
05/2020	$17,342	$13,898
06/2020	$18,422	$14,342
07/2020	$19,502	$15,101
08/2020	$20,970	$16,025
09/2020	$20,394	$15,508
10/2020	$20,300	$15,131
11/2020	$22,202	$16,996
12/2020	$23,087	$17,785
01/2021	$23,012	$17,705
02/2021	$23,499	$18,115
03/2021	$23,748	$18,598
04/2021	$24,801	$19,412
05/2021	$24,788	$19,714
06/2021	$25,424	$19,973
07/2021	$25,200	$20,111
08/2021	$26,098	$20,614
09/2021	$24,365	$19,763
10/2021	$24,938	$20,772
11/2021	$24,028	$20,271
12/2021	$24,440	$21,082
01/2022	$22,981	$20,047
02/2022	$22,056	$19,529
03/2022	$22,137	$19,952
04/2022	$19,369	$18,355
05/2022	$18,820	$18,377
06/2022	$17,735	$16,828
07/2022	$19,436	$18,003
08/2022	$18,726	$17,340
09/2022	$16,931	$15,680
10/2022	$17,172	$16,626
11/2022	$18,994	$17,916
12/2022	$18,111	$17,211
01/2023	$20,550	$18,444
02/2023	$19,684	$17,916
03/2023	$21,243	$18,468
04/2023	$21,185	$18,734
05/2023	$21,748	$18,533
06/2023	$22,974	$19,609
07/2023	$24,028	$20,327
08/2023	$22,772	$19,759
09/2023	$21,286	$18,942
10/2023	$20,521	$18,372
11/2023	$23,624	$20,068
12/2023	$24,648	$21,032
01/2024	$24,663	$21,155
02/2024	$26,279	$22,063
03/2024	$26,279	$22,756
04/2024	$24,836	$22,005
05/2024	$26,048	$22,899
06/2024	$27,203	$23,409
07/2024	$26,928	$23,786
08/2024	$28,054	$24,390
09/2024	$29,382	$24,957
10/2024	$28,934	$24,397
11/2024	$30,623	$25,309

Average Annual Return [Table Text Block]

AATR	1 Year	5 Years	Since Inception 3/31/16
Class Y	29.63%	13.19%	13.78%
MSCI All Country World Index (Net)	26.12%	11.36%	11.31%

Performance Inception Date

Mar. 31, 2016

Previous Investment Adviser [Text Block]

AssetsNet

$ 108,208,441

Holdings Count | Holding

Advisory Fees Paid, Amount

$ 584,539

InvestmentCompanyPortfolioTurnover

6.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets	$108,208,441
# of Portfolio Holdings (including overnight repurchase agreements)	46
Portfolio Turnover Rate	6%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)	$584,539

Holdings [Text Block]

Industry Summary

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	15.1%
Semiconductors & Semiconductor Equipment	4.4%
Hotels, Restaurants & Leisure	4.8%
IT Services	4.8%
Entertainment	5.0%
Biotechnology	5.1%
Automobiles	6.0%
Pharmaceuticals	6.4%
Financial Services	7.8%
Software	11.4%
Broadline Retail	13.6%
Interactive Media & Services	15.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Top Ten Holdings

Meta Platforms, Inc., Class A	7.4%
MercadoLibre, Inc.	6.5%
Amazon.com, Inc.	6.2%
Tesla, Inc.	6.0%
Netflix, Inc.	5.0%
Shopify, Inc., Class A	4.8%
Alphabet, Inc., Class A	4.8%
Oracle Corp.	4.6%
Microsoft Corp.	3.6%
Visa, Inc., Class A	3.6%

Country Weightings

Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	6.8%
Netherlands	3.1%
Switzerland	4.1%
Canada	4.8%
Brazil	8.0%
China	9.6%
United States	63.6%

Footnote	Description
Footnote^*	Net of other assets less liabilities

C000167848

Shareholder Report [Line Items]

Fund Name

Loomis Sayles Global Growth Fund

Class Name

Class A

Trading Symbol

LSAGX

Annual or Semi-Annual Statement [Text Block]