v3.26.3
Expense Example, No Redemption - C Class
Jun. 30, 2026
USD ($)
AB ARK Transformational Innovation Fund | American Beacon ARK Transformational Innovation Fund  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 214
Expense Example, No Redemption, 3 Years 692
Expense Example, No Redemption, 5 Years 1,196
Expense Example, No Redemption, 10 Years 2,584
AB TwentyFour Funds | American Beacon TwentyFour Strategic Income Fund  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 182
Expense Example, No Redemption, 3 Years 582
Expense Example, No Redemption, 5 Years 1,008
Expense Example, No Redemption, 10 Years 2,194
AB TwentyFour Funds | American Beacon TwentyFour Short Term Bond Fund  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 151
Expense Example, No Redemption, 3 Years 967
Expense Example, No Redemption, 5 Years 1,801
Expense Example, No Redemption, 10 Years $ 3,969