Investor A C And Institutional [Member] Expense Example, No Redemption - Investor A C and Institutional - BlackRock California Municipal Opportunities Fund - Investor C |
May 31, 2026
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 148 |
| Expense Example, No Redemption, 3 Years | 471 |
| Expense Example, No Redemption, 5 Years | 818 |
| Expense Example, No Redemption, 10 Years | $ 1,591 |