Performance Management - Schwab Select Large Cap Growth Fund |
Jul. 28, 2026 |
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| Prospectus [Line Items] | |||||
| Bar Chart and Performance Table [Heading] | Performance | ||||
| Performance Narrative [Text Block] | The bar chart below shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compared to that of one or more indices. The S&P 500® Index serves as the fund’s regulatory index and provides a broad measure of market performance. The Russell 1000 Growth Index is the fund’s additional index and is more representative of the fund’s investment universe than the regulatory index. This information provides some indication of the risks of investing in the fund. All figures assume distributions were reinvested. Keep in mind that future performance (both before and after taxes) may differ from past performance. For current performance information, please see www.schwabassetmanagement.com/prospectus. Prior to September 15, 2023, the fund had a different subadviser. The performance history of the fund prior to that date is attributable to the previous subadviser. |
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| Performance Past Does Not Indicate Future [Text] | Keep in mind that future performance (both before and after taxes) may differ from past performance. | ||||
| Performance Information Illustrates Variability of Returns [Text] | The bar chart below shows how the fund’s investment results have varied from year to year, and the following table shows how the fund’s average annual total returns for various periods compared | ||||
| Performance Additional Market Index [Text] | The Russell 1000 Growth Index is the fund’s additional index and is more representative of the fund’s investment universe than the regulatory index. | ||||
| Bar Chart [Heading] | Annual Total Returns (%) as of 12/31 | ||||
| Bar Chart Closing [Text Block] |
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| Performance Table Uses Highest Federal Rate | The after-tax figures reflect the highest individual federal income tax rates in effect during the period and do not reflect the impact of state and local taxes. | ||||
| Performance Table Not Relevant to Tax Deferred | Your actual after-tax returns depend on your individual tax situation. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan, an individual retirement account (IRA) or other tax-advantaged account. | ||||
| Performance Table Explanation after Tax Higher | In some cases, the return after taxes on distributions and sale of shares may exceed the fund’s other returns due to an assumed benefit from any losses on a sale of shares at the end of the measurement period. | ||||
| Performance [Table] | |||||
| Average Annual Return, Caption [Optional Text] | Average Annual Total Returns as of 12/31/25 | ||||
| Performance Table Closing [Text Block] | The after-tax figures reflect the highest individual federal income tax rates in effect during the period and do not reflect the impact of state and local taxes. Your actual after-tax returns depend on your individual tax situation. In addition, after-tax returns are not relevant if you hold your fund shares through a tax-deferred arrangement, such as a 401(k) plan, an individual retirement account (IRA) or other tax-advantaged account. In some cases, the return after taxes on distributions and sale of shares may exceed the fund’s other returns due to an assumed benefit from any losses on a sale of shares at the end of the measurement period. |
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| Performance Availability Website Address [Text] | www.schwabassetmanagement.com/prospectus | ||||
| Schwab Select Large Cap Growth Fund | |||||
| Prospectus [Line Items] | |||||
| Year to Date Return, Label [Optional Text] | Year-to-date performance (before taxes) | ||||
| Bar Chart, Year to Date Return | 6.27% | ||||
| Bar Chart, Year to Date Return, Date | Jun. 30, 2026 | ||||
| Highest Quarterly Return, Label [Optional Text] | Best Quarter: | ||||
| Highest Quarterly Return | 28.76% | ||||
| Highest Quarterly Return, Date | Jun. 30, 2020 | ||||
| Lowest Quarterly Return, Label [Optional Text] | Worst Quarter: | ||||
| Lowest Quarterly Return | (23.39%) | ||||
| Lowest Quarterly Return, Date | Jun. 30, 2022 | ||||
| Index No Deduction for Fees, Expenses, or Taxes [Text] | reflects nodeduction for fees, expenses, or taxes |