S000020207 [Member] Investment Objectives and Goals - AMG GW&K Small Cap Value Fund |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | AMG GW&K Small Cap Value Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of AMG GW&K Small Cap Value Fund (the “Fund”) is to seek to provide long-term capital appreciation.
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