S000001246 [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 |
|
| SMALL CAP VALUE FUND | SMALL CAP VALUE FUND | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 10.50% | 5.34% | 15.55% | (10.40%) | 26.37% | (2.30%) | 22.27% | (13.68%) | 6.43% | 27.87% |