Alger Balanced Portfolio 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 |
|
| Class I2 [Member] | Alger Balanced Portfolio | Class I-2 | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.15% | 17.07% | 17.43% | (11.31%) | 19.12% | 10.23% | 19.50% | (3.32%) | 15.44% | 8.51% |