Annual Total Returns - Natixis Funds Trust I |
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 |
Dec. 31, 2016 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mirova Global Megatrends Fund | Class Y | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 15.32% | 13.06% | 18.63% | (22.33%) | 18.06% | 32.42% | 32.99% | (6.32%) | 30.75% | |
| Vaughan Nelson Small Cap Fund | Class Y | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 12.16% | 5.05% | 25.10% | (9.98%) | 30.61% | 9.23% | 24.88% | (14.61%) | 6.60% | 20.53% |
| Natixis Oakmark International Fund | Class A | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 25.00% | (5.13%) | 18.94% | (15.91%) | 8.73% | 4.06% | 24.35% | (24.15%) | 29.56% | 8.19% |
| Natixis U.S. Equity Opportunities Fund | Class Y | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 17.62% | 25.54% | 37.35% | (20.95%) | 23.48% | 22.36% | 31.36% | (6.24%) | 26.60% | 12.13% |