Fixed Income SHares Series M 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 |
|
| Fixed Income SHares Series M | Series M | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 10.63% | 5.94% | 9.12% | (14.99%) | 1.45% | 9.12% | 8.40% | 2.23% | 9.60% | 8.78% |