Class I [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 |
Dec. 31, 2016 |
|
| Class I | AMG Yacktman Fund | Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 19.82% | 4.91% | 15.39% | (7.37%) | 19.63% | 15.28% | 17.66% | 2.69% | 18.23% | 11.20% |