Class A C F I I And Class I S [Member] Average Annual Total Returns - Class A, C, FI, I and Class IS |
12 Months Ended | 60 Months Ended | 88 Months Ended | 120 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
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] | 1.05% | 0.99% | 2.25% | ||||
| Bloomberg Municipal 3 Year (2-4) Index (reflects no deduction for fees, expenses or taxes) | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | [2] | 2.04% | 1.07% | 1.35% | ||||
| Class A | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | (0.16%) | 0.57% | 0.89% | |||||
| Class A | After Taxes on Distributions | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | (0.16%) | 0.57% | 0.88% | |||||
| Class A | After Taxes on Distributions and Sales | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 0.80% | 0.79% | 1.00% | |||||
| Class C | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 1.87% | 0.68% | 0.77% | |||||
| Class I | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 2.39% | 1.18% | 1.25% | |||||
| Class IS | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 2.44% | 1.24% | 1.44% | |||||
| Performance Inception Date | Sep. 15, 2017 | |||||||
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