Class K [Member] Expense Example - Class K - BlackRock Advantage Emerging Markets Fund - Class K Shares	Apr. 30, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 84
Expense Example, with Redemption, 3 Years	352
Expense Example, with Redemption, 5 Years	641
Expense Example, with Redemption, 10 Years	$ 1,463

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