Core Bond Fund 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 |
|
| Core Bond Fund | None | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 7.64% | 1.69% | 6.51% | (14.25%) | (0.76%) | 8.73% | 10.42% | (2.04%) | 4.60% | 3.44% |