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S000037565 [Member] Investment Objectives and Goals - AMG Yacktman Focused Fund
Dec. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] AMG Yacktman Focused Fund
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
The AMG Yacktman Focused Fund’s (the “Fund”) investment objective is to seek long-term capital appreciation and, to a lesser extent, current income.