Annual Total Returns - American Century Quantitative Equity Funds Prospectus |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| DISCIPLINED CORE EQUITY FUND | DISCIPLINED CORE EQUITY FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 18.42% | 24.70% | 24.36% | (22.92%) | 26.52% | 14.50% | 28.35% | (6.30%) | 21.85% | 9.98% |
| DISCIPLINED GROWTH FUND | DISCIPLINED GROWTH FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 17.20% | 31.36% | 43.07% | (31.44%) | 23.81% | 33.13% | 29.94% | (5.58%) | 26.06% | 8.45% |
| DISCIPLINED VALUE FUND | DISCIPLINED VALUE FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 14.92% | 13.26% | 8.44% | (12.61%) | 23.70% | 11.88% | 23.98% | (6.86%) | 20.62% | 13.57% |
| GLOBAL GOLD FUND | GLOBAL GOLD FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 158.48% | 15.11% | 7.51% | (12.55%) | (8.86%) | 18.94% | 37.84% | (7.43%) | 10.62% | 52.95% |
| SMALL COMPANY FUND | SMALL COMPANY FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 12.93% | 4.44% | 21.29% | (21.39%) | 20.97% | 16.40% | 19.71% | (14.38%) | 10.58% | 18.05% |
| UTILITIES FUND | UTILITIES FUND INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.81% | 24.32% | (7.49%) | (5.08%) | 13.74% | (2.42%) | 19.93% | 0.91% | 0.62% | 23.61% |