Investment Risks |
Aug. 05, 2026 |
|---|---|
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | Risk Lose Money [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | You could lose money by investing in the fund. |
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | Risk Not Insured Depository Institution [Member] | |
| Prospectus Line Items | |
| Risk [Text Block] | An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency . |
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | FinancialsIndustryConcentrationMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Financials Industry Concentration. The financials industries are subject to extensive government regulation, can be subject to relatively rapid change due to increasingly blurred distinctions between service segments, and can be significantly affected by availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, and price competition. |
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | ForeignExposureMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Foreign Exposure. Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. |
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | IssuerSpecificChangesMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. The value of securities of smaller issuers can be more volatile than that of larger issuers. |
| SelectPortfoliosFinancialsPortfolio-AMCIZPro | Select Financials Portfolio | StockMarketVolatilityMember | |
| Prospectus Line Items | |
| Risk [Text Block] | Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. |
| Document Type | 485BPOS |