| Shareholder Report | 6 Months Ended |
| Dec. 31, 2024 USD ($) holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | AMERICAN CENTURY QUANTITATIVE EQUITY FUNDS, INC. |
| Entity Central Index Key | 0000827060 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Dec. 31, 2024 |
| C000016473 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | Investor Class |
| Trading Symbol | BIGRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $34 0.65% |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000016475 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | I Class |
| Trading Symbol | AMGIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $23 0.45% |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.45% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000016474 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | A Class |
| Trading Symbol | AMADX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $47 0.90% |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.90% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000016476 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | C Class |
| Trading Symbol | ACGCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $85 1.65% |
| Expenses Paid, Amount | $ 85 |
| Expense Ratio, Percent | 1.65% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000016477 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | R Class |
| Trading Symbol | AICRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $60 1.15% |
| Expenses Paid, Amount | $ 60 |
| Expense Ratio, Percent | 1.15% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000189761 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Core Value Fund |
| Class Name | R5 Class |
| Trading Symbol | AICGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Core Value Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $23 0.45% |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.45% |
| Net Assets | $ 1,965,202,686 |
| Holdings Count | holding | 203 |
| Advisory Fees Paid, Amount | $ 6,426,479 |
| Investment Company, Portfolio Turnover | 48% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 7% Short-Term Investments 0.7% Pharmaceuticals 6% Other Assets and Liabilities 0.0% Financial Services 5% Machinery 5% Consumer Staples Distribution & Retail 5% |
| C000016462 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | Investor Class |
| Trading Symbol | ADSIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $49 0.92% |
| Expenses Paid, Amount | $ 49 |
| Expense Ratio, Percent | 0.92% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000016464 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | I Class |
| Trading Symbol | ADCIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $38 0.72% |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.72% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000189758 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | Y Class |
| Trading Symbol | ADCYX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Y Class $35 0.67% |
| Expenses Paid, Amount | $ 35 |
| Expense Ratio, Percent | 0.67% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000016463 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | A Class |
| Trading Symbol | ADCVX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $62 1.17% |
| Expenses Paid, Amount | $ 62 |
| Expense Ratio, Percent | 1.17% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000055501 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | C Class |
| Trading Symbol | ADCCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $101 1.92% |
| Expenses Paid, Amount | $ 101 |
| Expense Ratio, Percent | 1.92% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000016465 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | R Class |
| Trading Symbol | ADRRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $75 1.42% |
| Expenses Paid, Amount | $ 75 |
| Expense Ratio, Percent | 1.42% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000189759 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Disciplined Growth Fund |
| Class Name | R5 Class |
| Trading Symbol | ADGGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Disciplined Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $38 0.72% |
| Expenses Paid, Amount | $ 38 |
| Expense Ratio, Percent | 0.72% |
| Net Assets | $ 461,294,233 |
| Holdings Count | holding | 116 |
| Advisory Fees Paid, Amount | $ 1,996,571 |
| Investment Company, Portfolio Turnover | 26% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Software 22% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 17% Other Assets and Liabilities (0.1)% Technology Hardware, Storage and Peripherals 13% Interactive Media and Services 10% Broadline Retail 6% |
| C000016466 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | Investor Class |
| Trading Symbol | BEQGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $34 0.65% |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000016468 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | I Class |
| Trading Symbol | AMEIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $24 0.45% |
| Expenses Paid, Amount | $ 24 |
| Expense Ratio, Percent | 0.45% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000016467 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | A Class |
| Trading Symbol | BEQAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $47 0.90% |
| Expenses Paid, Amount | $ 47 |
| Expense Ratio, Percent | 0.90% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000016469 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | C Class |
| Trading Symbol | AEYCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $86 1.65% |
| Expenses Paid, Amount | $ 86 |
| Expense Ratio, Percent | 1.65% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000016470 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | R Class |
| Trading Symbol | AEYRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $60 1.15% |
| Expenses Paid, Amount | $ 60 |
| Expense Ratio, Percent | 1.15% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000189760 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Equity Growth Fund |
| Class Name | R5 Class |
| Trading Symbol | AEYGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Equity Growth Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $24 0.45% |
| Expenses Paid, Amount | $ 24 |
| Expense Ratio, Percent | 0.45% |
| Net Assets | $ 1,725,660,683 |
| Holdings Count | holding | 205 |
| Advisory Fees Paid, Amount | $ 5,501,547 |
| Investment Company, Portfolio Turnover | 36% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.4% Software 14% Short-Term Investments 0.8% Semiconductors and Semiconductor Equipment 12% Other Assets and Liabilities (0.2)% Technology Hardware, Storage and Peripherals 7% Interactive Media and Services 7% Broadline Retail 5% |
| C000016471 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Gold Fund |
| Class Name | Investor Class |
| Trading Symbol | BGEIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Gold Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $33 0.65% |
| Expenses Paid, Amount | $ 33 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 663,097,743 |
| Holdings Count | holding | 59 |
| Advisory Fees Paid, Amount | $ 2,260,597 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.5% Canada 50% Short-Term Investments 6.4% Australia 16% Other Assets and Liabilities (4.9)% South Africa 12% United States 8% China 7% |
| C000055503 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Gold Fund |
| Class Name | I Class |
| Trading Symbol | AGGNX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Gold Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $23 0.45% |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.45% |
| Net Assets | $ 663,097,743 |
| Holdings Count | holding | 59 |
| Advisory Fees Paid, Amount | $ 2,260,597 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.5% Canada 50% Short-Term Investments 6.4% Australia 16% Other Assets and Liabilities (4.9)% South Africa 12% United States 8% China 7% |
| C000016472 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Gold Fund |
| Class Name | A Class |
| Trading Symbol | ACGGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Gold Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $46 0.90% |
| Expenses Paid, Amount | $ 46 |
| Expense Ratio, Percent | 0.90% |
| Net Assets | $ 663,097,743 |
| Holdings Count | holding | 59 |
| Advisory Fees Paid, Amount | $ 2,260,597 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.5% Canada 50% Short-Term Investments 6.4% Australia 16% Other Assets and Liabilities (4.9)% South Africa 12% United States 8% China 7% |
| C000055505 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Gold Fund |
| Class Name | C Class |
| Trading Symbol | AGYCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Gold Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $84 1.65% |
| Expenses Paid, Amount | $ 84 |
| Expense Ratio, Percent | 1.65% |
| Net Assets | $ 663,097,743 |
| Holdings Count | holding | 59 |
| Advisory Fees Paid, Amount | $ 2,260,597 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.5% Canada 50% Short-Term Investments 6.4% Australia 16% Other Assets and Liabilities (4.9)% South Africa 12% United States 8% China 7% |
| C000055506 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Global Gold Fund |
| Class Name | R Class |
| Trading Symbol | AGGWX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Global Gold Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $59 1.15% |
| Expenses Paid, Amount | $ 59 |
| Expense Ratio, Percent | 1.15% |
| Net Assets | $ 663,097,743 |
| Holdings Count | holding | 59 |
| Advisory Fees Paid, Amount | $ 2,260,597 |
| Investment Company, Portfolio Turnover | 10% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Countries (as a % of net assets) Common Stocks 98.5% Canada 50% Short-Term Investments 6.4% Australia 16% Other Assets and Liabilities (4.9)% South Africa 12% United States 8% China 7% |
| C000016484 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | Investor Class |
| Trading Symbol | ASQIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $44 0.85% |
| Expenses Paid, Amount | $ 44 |
| Expense Ratio, Percent | 0.85% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000016486 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | I Class |
| Trading Symbol | ASCQX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment I Class $34 0.65% |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000016485 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | A Class |
| Trading Symbol | ASQAX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment A Class $57 1.10% |
| Expenses Paid, Amount | $ 57 |
| Expense Ratio, Percent | 1.10% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000088007 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | C Class |
| Trading Symbol | ASQCX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment C Class $95 1.85% |
| Expenses Paid, Amount | $ 95 |
| Expense Ratio, Percent | 1.85% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000016487 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | R Class |
| Trading Symbol | ASCRX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R Class $70 1.35% |
| Expenses Paid, Amount | $ 70 |
| Expense Ratio, Percent | 1.35% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000189764 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Small Company Fund |
| Class Name | R5 Class |
| Trading Symbol | ASQGX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Small Company Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment R5 Class $34 0.65% |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 154,699,594 |
| Holdings Count | holding | 293 |
| Advisory Fees Paid, Amount | $ 681,294 |
| Investment Company, Portfolio Turnover | 43% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Industries (as a % of net assets) Common Stocks 99.3% Banks 9% Short-Term Investments 0.9% Software 8% Other Assets and Liabilities (0.2)% Biotechnology 8% Insurance 4% Trading Companies and Distributors 4% |
| C000016488 [Member] | |
| Shareholder Report [Line Items] | |
| Fund Name | Utilities Fund |
| Class Name | Investor Class |
| Trading Symbol | BULIX |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Utilities Fund for the period of July 1, 2024 to December 31, 2024. |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the fund at americancentury.com/docs. You can also request this information by contacting us at 1-800-345-2021. |
| Additional Information Phone Number | 1-800-345-2021 |
| Additional Information Website | americancentury.com/docs |
| Expenses [Text Block] | What were the fund costs for the last six months? (based on a hypothetical $10,000 investment) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Investor Class $35 0.65% |
| Expenses Paid, Amount | $ 35 |
| Expense Ratio, Percent | 0.65% |
| Net Assets | $ 257,571,423 |
| Holdings Count | holding | 35 |
| Advisory Fees Paid, Amount | $ 873,770 |
| Investment Company, Portfolio Turnover | 39% |
| Holdings [Text Block] | Fund Holdings Types of Investments in Portfolio (as a % of net assets) Top Five Sub-Industries (as a % of net assets) Common Stocks 99.2% Electric Utilities 64% Short-Term Investments 1.1% Multi-Utilities 20% Other Assets and Liabilities (0.3)% Independent Power Producers and Energy Traders 6% Gas Utilities 3% Water Utilities 2% |
