Shareholder Report, Line Graph (Details) - USD ($) |
1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 7 Months Ended | 8 Months Ended | 9 Months Ended | 10 Months Ended | 11 Months Ended | 12 Months Ended | 13 Months Ended | 14 Months Ended | 15 Months Ended | 16 Months Ended | 17 Months Ended | 18 Months Ended | 19 Months Ended | 20 Months Ended | 21 Months Ended | 22 Months Ended | 23 Months Ended | 24 Months Ended | 25 Months Ended | 26 Months Ended | 27 Months Ended | 28 Months Ended | 29 Months Ended | 30 Months Ended | 31 Months Ended | 32 Months Ended | 33 Months Ended | 34 Months Ended | |||
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May 31, 2023 |
May 18, 2023 |
Jun. 30, 2023 |
Jul. 31, 2023 |
Aug. 31, 2023 |
Sep. 30, 2023 |
Oct. 31, 2023 |
Mar. 31, 2026 |
Nov. 30, 2023 |
Dec. 31, 2023 |
Jan. 31, 2024 |
Feb. 29, 2024 |
Mar. 31, 2024 |
Apr. 30, 2024 |
May 31, 2024 |
Jun. 30, 2024 |
Jul. 31, 2024 |
Aug. 31, 2024 |
Sep. 30, 2024 |
Oct. 31, 2024 |
Nov. 30, 2024 |
Dec. 31, 2024 |
Jan. 31, 2025 |
Feb. 28, 2025 |
Mar. 31, 2025 |
Apr. 30, 2025 |
May 31, 2025 |
Jun. 30, 2025 |
Jul. 31, 2025 |
Aug. 31, 2025 |
Sep. 30, 2025 |
Oct. 31, 2025 |
Nov. 30, 2025 |
Dec. 31, 2025 |
Jan. 31, 2026 |
Feb. 28, 2026 |
Mar. 31, 2026 |
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| Bloomberg Municipal Bond Index | |||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,958.68 | $ 10,000.00 | $ 10,058.43 | $ 10,098.26 | $ 9,952.84 | $ 9,661.15 | $ 9,578.91 | $ 10,187.05 | $ 10,423.77 | $ 10,370.55 | $ 10,383.87 | $ 10,383.56 | $ 10,254.94 | $ 10,224.90 | $ 10,381.59 | $ 10,476.21 | $ 10,558.85 | $ 10,663.18 | $ 10,507.76 | $ 10,689.20 | $ 10,533.62 | $ 10,586.38 | $ 10,691.33 | $ 10,510.20 | $ 10,425.51 | $ 10,432.21 | $ 10,497.11 | $ 10,475.98 | $ 10,566.98 | $ 10,811.67 | $ 10,945.80 | $ 10,970.88 | $ 10,980.81 | $ 11,083.80 | $ 11,221.96 | $ 10,961.34 | |
| Bloomberg Municipal Bond: High Yield (non-Investment Grade)Index | |||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond: High Yield (non-Investment Grade)Index | ||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 9,964.95 | $ 10,000.00 | $ 10,141.78 | $ 10,207.89 | $ 10,053.09 | $ 9,711.32 | $ 9,555.76 | $ 10,296.48 | $ 10,605.74 | $ 10,556.51 | $ 10,639.46 | $ 10,765.83 | $ 10,699.74 | $ 10,780.92 | $ 11,044.62 | $ 11,165.79 | $ 11,297.41 | $ 11,399.02 | $ 11,225.34 | $ 11,466.63 | $ 11,275.77 | $ 11,361.26 | $ 11,503.09 | $ 11,367.83 | $ 11,165.33 | $ 11,173.23 | $ 11,238.68 | $ 11,069.28 | $ 11,128.35 | $ 11,421.78 | $ 11,536.22 | $ 11,581.16 | $ 11,552.96 | $ 11,665.81 | $ 11,860.86 | $ 11,635.46 | |