v3.26.3
Annual Fund Operating Expenses - American Century Quantitative Equity Funds Prospectus
Nov. 01, 2026
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND I CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.46%
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND A CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.91%
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND C CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.66%
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND R CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.16%
DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND R5 CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.46%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.91% [1]
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.92%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND I CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.71% [1]
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.72%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND Y CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.66% [1]
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.67%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND A CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.91% [1]
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.17%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND C CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.91% [1]
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.92%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND R CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.91% [1]
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.42%
DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND R5 CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.71% [1]
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.72%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND I CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.46%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND A CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.91%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND C CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.66%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND R CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.16%
DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND R5 CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.46%
GLOBAL GOLD FUND | GLOBAL GOLD FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
GLOBAL GOLD FUND | GLOBAL GOLD FUND I CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.45%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.46%
GLOBAL GOLD FUND | GLOBAL GOLD FUND A CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.91%
GLOBAL GOLD FUND | GLOBAL GOLD FUND C CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.66%
GLOBAL GOLD FUND | GLOBAL GOLD FUND R CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.16%
SMALL COMPANY FUND | SMALL COMPANY FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.85%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.86%
SMALL COMPANY FUND | SMALL COMPANY FUND I CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
SMALL COMPANY FUND | SMALL COMPANY FUND A CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.85%
Distribution and Service (12b-1) Fees 0.25%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.11%
SMALL COMPANY FUND | SMALL COMPANY FUND C CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.85%
Distribution and Service (12b-1) Fees 1.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.86%
SMALL COMPANY FUND | SMALL COMPANY FUND R CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.85%
Distribution and Service (12b-1) Fees 0.50%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 1.36%
SMALL COMPANY FUND | SMALL COMPANY FUND R5 CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
UTILITIES FUND | UTILITIES FUND INVESTOR CLASS  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.65%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.01%
Expenses (as a percentage of Assets) 0.66%
[1] The management fee has been restated to reflect the decrease in the management fee schedule effective August 1, 2026.