Blue Chip Growth Fund Expense Example - Class NAV [Member] - Blue Chip Growth Fund - Class NAV	Aug. 31, 2024 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 76
Expense Example, with Redemption, 3 Years	239
Expense Example, with Redemption, 5 Years	416
Expense Example, with Redemption, 10 Years	$ 929

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