Alger Growth & Income 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 Growth & Income Portfolio | Class I-2 | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.82% | 22.66% | 23.93% | (14.98%) | 31.66% | 14.88% | 29.47% | (4.61%) | 21.32% | 10.24% |