Investor A Investor C And Institutional [Member] Expense Example, No Redemption - Investor A, C And Institutional - BlackRock New York Municipal Opportunities Fund - Investor C Shares |
Jun. 30, 2026
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 173 |
| Expense Example, No Redemption, 3 Years | 555 |
| Expense Example, No Redemption, 5 Years | 961 |
| Expense Example, No Redemption, 10 Years | $ 1,895 |