S000010027 [Member] Investment Strategy - The MidCap Growth Fund |
Oct. 31, 2025 |
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| Prospectus [Line Items] | |||||||||||||||
| Strategy [Heading] | Principal Investment Strategies | ||||||||||||||
| Strategy Narrative [Text Block] |
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| Strategy Portfolio Concentration [Text] | The Fund may invest a significant amount of its assets from time to time in technology sectors. |