Diversified Municipal Portfolio [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Diversified Municipal Portfolio | Diversified Municipal Portfolio | Diversified Municipal Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.53% | 2.24% | 5.07% | (5.78%) | 1.38% | 4.14% | 5.64% | 0.96% | 3.01% | (0.34%) |