Diversified Municipal Portfolio [Member] Average Annual Total Returns - Diversified Municipal Portfolio |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses, or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.25% | 0.80% | 2.34% |
| Bloomberg 1-10 Year Blend Index (reflects no deduction for fees, expenses, or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.14% | 1.21% | 2.08% |
| Diversified Municipal Class | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.53% | 1.41% | 2.03% |
| Diversified Municipal Class | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.45% | 1.36% | 1.99% |
| Diversified Municipal Class | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.91% | 1.61% | 2.06% |