v3.26.1
Average Annual Total Returns
 12 Months Ended 60 Months Ended 84 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | Russell 1000® Growth Index (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   18.56% 15.32%   18.13%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42%   14.82%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   9.22% 9.89%   13.30%
Performance Inception Date Feb. 05, 2016        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent   14.02% 10.39%   13.13%
Performance Inception Date Feb. 05, 2016        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   16.17% 11.50%   14.26%
Performance Inception Date Feb. 05, 2016        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | R6 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   16.25% 11.59%   14.38%
Performance Inception Date Apr. 30, 2018        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   16.23% 11.52%   14.32%
Performance Inception Date Oct. 31, 2003        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | R5 Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   13.71% 8.52%   11.75%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | R5 Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   11.43% 8.48%   11.16%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Growth Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   15.86% 11.19%   13.94%
Performance Inception Date Feb. 05, 2016        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42%   14.82%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | Russell 1000® Value Index (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   15.91% 11.33%   10.53%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   16.64% 11.03%   8.91%
Performance Inception Date Feb. 03, 2012        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent   21.82% 11.52%   8.75%
Performance Inception Date Feb. 03, 2012        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   24.11% 12.66%   9.87%
Performance Inception Date Feb. 03, 2012        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | R6 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   24.23% 12.82%   9.99%
Performance Inception Date Apr. 28, 2017        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   24.16% 12.73%   9.94%
Performance Inception Date Oct. 31, 2003        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   23.81% 12.36%   9.58%
Performance Inception Date Feb. 03, 2012        
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | Investor Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   20.58% 9.33%   7.36%
American Beacon Man Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Man Large Cap Value Fund | Investor Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   16.44% 9.06%   7.19%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | Russell Midcap® Growth Index (Reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   8.66% 6.65%   12.49%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42%   14.82%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   6.05% 3.83%   11.86%
Performance Inception Date Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent   10.71% 4.29%   11.70%
Performance Inception Date Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   12.81% 5.33%   12.82%
Performance Inception Date Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | R6 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   12.89% 5.40%   12.93%
Performance Inception Date Dec. 31, 2018        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   12.85% 5.39%   12.92%
Performance Inception Date Aug. 31, 2006        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   12.57% 5.11%   12.57%
Performance Inception Date Feb. 01, 2006        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | Investor Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   5.50% 3.01%   10.78%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Mid-Cap Growth Fund | Investor Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   12.12% 3.85%   10.13%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42%   14.82%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | Russell 2000® Growth Index (Reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   13.01% 3.18%   9.57%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   5.17% 3.26%   10.25%
Performance Inception Date Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent [1]   9.70% 3.43%   9.92%
Performance Inception Date [1] Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   11.79% 4.73%   11.17%
Performance Inception Date Feb. 24, 2012        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | R6 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   11.92% 4.82%   11.27%
Performance Inception Date Apr. 30, 2019        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   11.82% 4.80%   11.24%
Performance Inception Date Aug. 31, 2006        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   11.50% 4.48%   10.91%
Performance Inception Date Dec. 01, 2005        
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | Investor Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   8.82% 1.90%   8.03%
American Beacon Stephens Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon Stephens Small Cap Growth Fund | Investor Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   8.81% 3.21%   8.34%
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | ICE BofA US 3-Month Treasury Bill Index (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   4.18% 3.17%   2.18%
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42%   14.82%
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   (3.77%) 2.76%   2.99%
Performance Inception Date Aug. 19, 2014        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent   0.51% 3.27%   2.88%
Performance Inception Date Aug. 19, 2014        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   2.42% 4.26%   3.92%
Performance Inception Date Aug. 19, 2014        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   2.54% 4.35%   4.00%
Performance Inception Date Aug. 19, 2014        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   2.15% 3.95%   3.61%
Performance Inception Date Aug. 19, 2014        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | Investor Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   (0.96%) 1.69%   1.93%
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL Managed Futures Strategy Fund | Investor Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   1.27% 2.27%   2.19%
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | S&P 500® Index TR (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   17.88% 14.42% 17.43%  
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | 60% MSCI® World Index (Hedged to USD) / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged USD (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   13.29% 8.30% 10.37%  
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | MSCI® World Index (Hedged to USD) (Reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   19.04% 13.67% 15.75%  
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | 60% MSCI World Index (Hedged to USD) / 40% Bloomberg Global-Aggregate Total Return Index Value Hedged USD (Reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Percent   4.86% 0.34% 2.17%  
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | A Class          
Prospectus [Line Items]          
Average Annual Return, Percent   1.92% 3.10% 6.50%  
Performance Inception Date Apr. 30, 2019        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | C Class          
Prospectus [Line Items]          
Average Annual Return, Percent   6.13% 3.54% 6.65%  
Performance Inception Date Apr. 30, 2019        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | Y Class          
Prospectus [Line Items]          
Average Annual Return, Percent   8.18% 4.57% 7.67%  
Performance Inception Date Dec. 31, 2018        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | R5 Class          
Prospectus [Line Items]          
Average Annual Return, Percent   8.44% 4.69% 7.77%  
Performance Inception Date Dec. 31, 2018        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | Investor Class          
Prospectus [Line Items]          
Average Annual Return, Percent   7.73% 4.25% 7.35%  
Performance Inception Date Dec. 31, 2018        
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | Investor Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Percent   4.46% 1.29% 4.91%  
American Beacon AHL Funds - Classes A, C, Y, R6, R5 and Investor | American Beacon AHL TargetRisk Fund | Investor Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Percent   4.56% 2.04% 4.78%  
[1]
* Performance for the 5 Years and 10 Years period has been adjusted to align with the Fund’s audited Financial Highlights for the fiscal year ended December 31, 2021, which reflect the correction of an expense accrual. If performance had been calculated based on the net asset value (“NAV”) per share as of December 31, 2021 without the expense accrual adjustment, performance would have been higher.