Alger Large Cap Growth 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 Large Cap Growth Portfolio | Class I-2 | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 30.27% | 42.89% | 32.67% | (38.66%) | 11.83% | 67.04% | 27.43% | 2.21% | 28.47% | (0.83%) |