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 | 100 Months Ended | 120 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
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| Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes) | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | [1] | 4.25% | 0.80% | 2.34% | ||||
| Bloomberg Municipal 3 Year (2-4) Index (reflects no deduction for fees, expenses or taxes) | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | [2] | 4.11% | 1.29% | 1.64% | ||||
| Class A | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 1.75% | 0.89% | 1.27% | |||||
| Class A | After Taxes on Distributions | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 1.75% | 0.89% | 1.27% | |||||
| Class A | After Taxes on Distributions and Sales | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 2.06% | 1.09% | 1.33% | |||||
| Class C | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 3.82% | 1.00% | 1.15% | |||||
| Class I | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 4.35% | 1.54% | 1.64% | |||||
| Class IS | ||||||||
| Prospectus [Line Items] | ||||||||
| Average Annual Return, Percent | 4.60% | 1.60% | 1.81% | |||||
| Performance Inception Date | Sep. 15, 2017 | |||||||
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