Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| 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% |
| Bloomberg Oregon Municipal Bond Index (reflects no deduction for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 0.50% | 0.69% | 2.06% |
| Class I | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.68% | 0.63% | 1.78% |
| Class A | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (2.36%) | (0.40%) | 1.16% |
| Class A | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (2.36%) | (0.40%) | 1.16% |
| Class A | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (0.44%) | 0.18% | 1.49% |
| Class C | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | (0.06%) | (0.07%) | 1.05% |