Investor A Investor C And Institutional [Member] Investment Objectives and Goals - Investor A, C And Institutional - BlackRock New York Municipal Opportunities Fund |
Jun. 30, 2026 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Fund Overview Key Facts About BlackRock New York Municipal Opportunities Fund |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The investment objective of the BlackRock New York Municipal Opportunities Fund (the “Fund”) is to provide shareholders with income exempt from Federal income tax and New York State and New York City personal income taxes.
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