v3.26.1
Annual Fund Operating Expenses - AMG GW&K Muni Income ETF - AMG GW&K Muni Income ETF
Dec. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.29%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00% [1]
Expenses (as a percentage of Assets) 0.29%
[1] Because the Fund is new, “Other Expenses” are based on estimates for the Fund’s current fiscal year.