Class K [Member] Average Annual Total Returns - Class K |
12 Months Ended | 60 Months Ended | 120 Months Ended | ||
|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
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| Bloomberg Municipal Bond Index (Reflects no deduction for fees, expenses or taxes) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 1.05% | 0.99% | 2.25% | ||
| Customized Reference Benchmark (Reflects no deduction for fees, expenses or taxes) | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | [1] | 2.12% | 1.31% | ||
| Class K Shares | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.35% | 0.52% | 2.27% | ||
| Class K Shares | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.20% | 0.40% | 2.06% | ||
| Class K Shares | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.36% | 0.92% | 2.26% | ||
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