S000009914 [Member] Expense Example - AMG GW&K Core Bond ESG Fund |
Oct. 31, 2025
USD ($)
|
|---|---|
| Class I | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 57 |
| Expense Example, with Redemption, 3 Years | 208 |
| Expense Example, with Redemption, 5 Years | 371 |
| Expense Example, with Redemption, 10 Years | 846 |
| Class Z | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 49 |
| Expense Example, with Redemption, 3 Years | 182 |
| Expense Example, with Redemption, 5 Years | 327 |
| Expense Example, with Redemption, 10 Years | 750 |
| Class N | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 90 |
| Expense Example, with Redemption, 3 Years | 309 |
| Expense Example, with Redemption, 5 Years | 545 |
| Expense Example, with Redemption, 10 Years | $ 1,224 |