S000053353 [Member] Annual Total Returns |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Loomis Sayles Global Growth Fund | Class Y | |||||||||
| Prospectus [Line Items] | |||||||||
| Annual Return [Percent] | 17.56% | 22.54% | 36.10% | (25.89%) | 5.86% | 35.33% | 30.58% | (6.71%) | 32.00% |