Investor A1 [Member] Average Annual Total Returns - Investor A1 |
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% | ||
| Investor A1 Shares | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.20% | 0.39% | 2.16% | ||
| Investor A1 Shares | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.04% | 0.28% | 1.95% | ||
| Investor A1 Shares | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.20% | 0.79% | 2.15% | ||
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